Taking a look at the 1974 and 1976 seasons, only one tornado day occurred in each year, making these tornado seasons the shortest on record since 1950. Values on the scale range from F0 for tornadoes producing minimal damage, to F5 for tornadoes causing devastating damage. 1974 – 366 Every year in the United States, tornadoes do about 400 million dollars in damage and kill about 70 people on average. Each year is represented by a green bar. Local Storm Reports, Radar Dr. Ted Fujita developed the F-Scale in 1971 to provide a method to rate the intensity of tornadoes. The nationwide network of Doppler radars was completed by the mid-1990s. History is replete with big tornado events that bring discussion of their destructive force out of hiding. Fourteen tornadoes have been reported between May 1 and May 10. The years 1974 and 1976 are not represented by bars on this chart. This chart is similar to the one above and takes the number of tornado days that occurred in each decade and averages them to determine approximately how many tornado days occurred per year. National Oceanic and Atmospheric Administration The 2000 season ended on October 31st with the “Halloween Outbreak” where a total of 13 tornadoes were reported across seven counties.
Tornado records are released in the spring following the end of each year.
This system is a network of 159 high-resolution S-band Doppler weather radars.
In many ways, it was a generational tornado outbreak like 2011 despite its lower death toll.
This averages to around nine tornadoes each year from 1950-1959. Submit a Storm Report 1965 – 31 Sherman County Kansas comes in a close second place with 107 tornadoes and Yuma County Colorado rounds out the top three with 91 reported tornadoes.
Wikimedia Commons has media related to Tornadoes by year. The 2010s recorded in the bar chart only account for nine years of data (2010-2018). The Annual Tornado Season bar chart depicts the length of each tornado season from 1950 to 2018. Note 2: The SPC online watch archive exists from 2004 to the current year. Observations (Ian Livingston/ustornadoes.com). In 1974, one tornado occurred on April 20th in Rawlins County. Another way to look at the increase in tornado reports is to break down the numbers by decade. Despite advancements, it is possible there are still many tornadoes that are not detected.
Storm and Precipitation Reports For example, the earliest start for a tornado season was between March 1 and 10 and the latest start date for a tornado season occurred between September 11 and September 20 when one tornado was reported.
It was based primarily on the damage tornadoes caused to man-made structures and vegetation. Forecasts were done by hand, on printed weather maps. Since 1990, the number of tornadoes reported has dramatically increased with over 200 tornadoes reported in the 1990s and 2000s. 1953 – 22 These unrated tornadoes are shown in the first column and labeled EF?. Social Dashboard Dr. Fujita's scale was quickly accepted by the NWS and came into wide use by the mid-1970s. (Brian Tang/NCAR).
This is, however, an average and not every year is considered average. In 1952, the first tornado also occurred in early May, however the season was much shorter than the 1951 season with the final tornado occurring in mid-July.
This was later enhanced by shows such as Discovery’s Storm Chasers. For example, on average, four tornado days occurred during each year of the 1970s. The lower end of each bar indicates the date of the first tornado for that year.
The 1990s and 2000s averaged 23-24 tornado reports per year during each ten year period. Winter Storm Severity Index Please try another search. 2011 – 1,691 Due to the small size of the chart, you’ll want to click on it for better readability. Counties in a high risk tornado area include Lincoln County, TN , Davidson County, TN and Franklin County, TN . In addition, the number of storm chasers using video cameras and cell phones to document and report severe weather increased in the 1990s. We will continue to update this post as new data is released. These factors are likely responsible for the large increase in tornadoes reported since the early 1990s.
Returning to the 2018 example from above, 11 tornadoes were reported over a total of five tornado days. It was based primarily on the damage tornadoes caused to man-made structures and vegetation. Event Summaries Or do they? The first reported tornado of the 1992 season occurred on March 8. For example, 55 tornadoes were reported in 2007 and only one tornado was reported in 1974. In the 1950s there was a practical use of numerical weather prediction and development of computers. Plus, let’s cut to the chase: any record is better than no record. Today in Weather History Activity Planner This statistic is misleading since tornado ratings are based on observed damage. Simply because of the large number of convective storms and the favorable environment, the odds are increased that some of these storms will produce tornadoes. Experimental Graphical Hazardous Weather Outlook Taking June as an example, 35 percent of all tornado reports received since 1950 have occurred during that month, while 30 percent have occurred in May. Volumetric scans also became available allowing further investigation of storms on radar and providing detailed wind information. In May of 1982 it began broadcasting around the clock, and provided more information during severe weather outbreaks. Tennessee averages 18 tornados per year, resulting in an average of 5 fatalities. All NOAA. The Mid-1970s also featured the first GOES satellite, which was launched into orbit in October of 1975. Dundy and Hitchcock counties in Nebraska have had the fewest tornado occurrences since 1950, with 26 and 27 tornado reports respectively. Tornadoes by year. The season began on April 2 with an EF0 tornado in Cheyenne County Colorado and ended with a late season outbreak on November 16. Since 1950, the 2015 tornado season is the longest on record at 229 days. Partly built from cobbled-together news accounts and the subjective ratings that come with them, the tornado record is fraught with issues, but it also tells a bunch of stories. And no, the presence of the Doppler radar in Goodland is not to blame! 1957 – 26 1965 – 301 The intent of the scale was to distinguish between weak and strong tornadoes. While we have a good idea of the ceilings, with big years like 2011 and 2008 behind us, there is still much we don’t know.
Questions? This data is a little skewed since only nine years (2010-2018) are averaged into the total. detecting any rotation present in a storm at different scan angles, May 3-4, 1999 tornado outbreak and the Bridge Creek-Moore F5, ustornadoes.com joins Ice Station Housman to talk about the 2018 tornado year, Tornado Threat Forecast: April 22-23, 2020, Busting severe storm myths before they bust your forecast, Tornado Threat Forecast: April 19-20, 2020. Peak tornado activity for Northwestern Kansas, Southwestern Nebraska, and Northeastern Colorado occurs in May and June, and to a lesser extent July. This bar chart depicts the length of each tornado season by year in an easier format to read than the above chart. Instead of showing the date of the start and end of each tornado season on the y-axis, the total number of days in each season is shown. The x-axis has been divided into ten day increments, and the y-axis shows the total number of tornadoes occurring within a time frame. Tornadoes can occur in any month of the year across the United States, and it should come as no surprise that the Plains states have the highest frequency of twisters in an average year. It’s only back to 1950 that we have regular data, and even the early part of this history is highly incomplete. Sixty four tornadoes in the historical records were not assigned a rating, perhaps due to lack of information about the tornado. Aviation Weather A total of 767 tornadoes have been reported within these three months which accounts for approximately 81 percent of all reported tornadoes in the Tri-State region. Weather Safety Images This situation would result when more than one tornado occurs on the same day. The upper limit on each bar shows the last day a tornado occurred in a year. The height of each bar indicates the length of each season with taller bars indicating longer seasons. This chart shows the number of tornado days that occurred each year. As the science continues to become better and better, it is worth keeping in mind how quickly things have changed over the modern history. In addition to the maps for each year at bottom, let’s take a brief walk through the history in which the modern tornado record has resided, from 1950 to here. Strong tornadoes are rated EF2 or EF 3. 1952 – 230. Text Weather Index Katie currently works as a GIS Analyst for EA Engineering, Science and Technology, Inc., PBC in Hunt Valley, Maryland. Tornadoes don’t happen in mountains. Digging into the tornado reports a little further, we can also look at the average number of tornadoes reported each year within a decade. The movie was undoubtedly a cause for increased storm chasing in the years and decades ahead. (Sam Barricklow via Flickr). Tornadoes occurring in an open field where there are very few things to damage will receive an EF0 or EF1 rating, even though the tornado may have actually been strong or violent. This set the stage for better forecasts, more accurate warnings for severe weather, and further research into the formation of tornadoes. For example, in 1951, the first tornado of the year occurred in early May and the last tornado occurred in late August. 2011 – 22, Top 5 deadliest years – Total Tornado Deaths: 5,845, 2011 – 553 Our Office Snowfall Analysis Local RSS Feeds So far, the average number of tornado days between 2010 and 2018 is a little under seven days. In terms of absolute tornado counts, the United States leads the list, with an average of over 1,000 tornadoes recorded each year. 2008 – 1,688
Taking a look at the 1974 and 1976 seasons, only one tornado day occurred in each year, making these tornado seasons the shortest on record since 1950. Values on the scale range from F0 for tornadoes producing minimal damage, to F5 for tornadoes causing devastating damage. 1974 – 366 Every year in the United States, tornadoes do about 400 million dollars in damage and kill about 70 people on average. Each year is represented by a green bar. Local Storm Reports, Radar Dr. Ted Fujita developed the F-Scale in 1971 to provide a method to rate the intensity of tornadoes. The nationwide network of Doppler radars was completed by the mid-1990s. History is replete with big tornado events that bring discussion of their destructive force out of hiding. Fourteen tornadoes have been reported between May 1 and May 10. The years 1974 and 1976 are not represented by bars on this chart. This chart is similar to the one above and takes the number of tornado days that occurred in each decade and averages them to determine approximately how many tornado days occurred per year. National Oceanic and Atmospheric Administration The 2000 season ended on October 31st with the “Halloween Outbreak” where a total of 13 tornadoes were reported across seven counties.
Tornado records are released in the spring following the end of each year.
This system is a network of 159 high-resolution S-band Doppler weather radars.
In many ways, it was a generational tornado outbreak like 2011 despite its lower death toll.
This averages to around nine tornadoes each year from 1950-1959. Submit a Storm Report 1965 – 31 Sherman County Kansas comes in a close second place with 107 tornadoes and Yuma County Colorado rounds out the top three with 91 reported tornadoes.
Wikimedia Commons has media related to Tornadoes by year. The 2010s recorded in the bar chart only account for nine years of data (2010-2018). The Annual Tornado Season bar chart depicts the length of each tornado season from 1950 to 2018. Note 2: The SPC online watch archive exists from 2004 to the current year. Observations (Ian Livingston/ustornadoes.com). In 1974, one tornado occurred on April 20th in Rawlins County. Another way to look at the increase in tornado reports is to break down the numbers by decade. Despite advancements, it is possible there are still many tornadoes that are not detected.
Storm and Precipitation Reports For example, the earliest start for a tornado season was between March 1 and 10 and the latest start date for a tornado season occurred between September 11 and September 20 when one tornado was reported.
It was based primarily on the damage tornadoes caused to man-made structures and vegetation. Forecasts were done by hand, on printed weather maps. Since 1990, the number of tornadoes reported has dramatically increased with over 200 tornadoes reported in the 1990s and 2000s. 1953 – 22 These unrated tornadoes are shown in the first column and labeled EF?. Social Dashboard Dr. Fujita's scale was quickly accepted by the NWS and came into wide use by the mid-1970s. (Brian Tang/NCAR).
This is, however, an average and not every year is considered average. In 1952, the first tornado also occurred in early May, however the season was much shorter than the 1951 season with the final tornado occurring in mid-July.
This was later enhanced by shows such as Discovery’s Storm Chasers. For example, on average, four tornado days occurred during each year of the 1970s. The lower end of each bar indicates the date of the first tornado for that year.
The 1990s and 2000s averaged 23-24 tornado reports per year during each ten year period. Winter Storm Severity Index Please try another search. 2011 – 1,691 Due to the small size of the chart, you’ll want to click on it for better readability. Counties in a high risk tornado area include Lincoln County, TN , Davidson County, TN and Franklin County, TN . In addition, the number of storm chasers using video cameras and cell phones to document and report severe weather increased in the 1990s. We will continue to update this post as new data is released. These factors are likely responsible for the large increase in tornadoes reported since the early 1990s.
Returning to the 2018 example from above, 11 tornadoes were reported over a total of five tornado days. It was based primarily on the damage tornadoes caused to man-made structures and vegetation. Event Summaries Or do they? The first reported tornado of the 1992 season occurred on March 8. For example, 55 tornadoes were reported in 2007 and only one tornado was reported in 1974. In the 1950s there was a practical use of numerical weather prediction and development of computers. Plus, let’s cut to the chase: any record is better than no record. Today in Weather History Activity Planner This statistic is misleading since tornado ratings are based on observed damage. Simply because of the large number of convective storms and the favorable environment, the odds are increased that some of these storms will produce tornadoes. Experimental Graphical Hazardous Weather Outlook Taking June as an example, 35 percent of all tornado reports received since 1950 have occurred during that month, while 30 percent have occurred in May. Volumetric scans also became available allowing further investigation of storms on radar and providing detailed wind information. In May of 1982 it began broadcasting around the clock, and provided more information during severe weather outbreaks. Tennessee averages 18 tornados per year, resulting in an average of 5 fatalities. All NOAA. The Mid-1970s also featured the first GOES satellite, which was launched into orbit in October of 1975. Dundy and Hitchcock counties in Nebraska have had the fewest tornado occurrences since 1950, with 26 and 27 tornado reports respectively. Tornadoes by year. The season began on April 2 with an EF0 tornado in Cheyenne County Colorado and ended with a late season outbreak on November 16. Since 1950, the 2015 tornado season is the longest on record at 229 days. Partly built from cobbled-together news accounts and the subjective ratings that come with them, the tornado record is fraught with issues, but it also tells a bunch of stories. And no, the presence of the Doppler radar in Goodland is not to blame! 1957 – 26 1965 – 301 The intent of the scale was to distinguish between weak and strong tornadoes. While we have a good idea of the ceilings, with big years like 2011 and 2008 behind us, there is still much we don’t know.
Questions? This data is a little skewed since only nine years (2010-2018) are averaged into the total. detecting any rotation present in a storm at different scan angles, May 3-4, 1999 tornado outbreak and the Bridge Creek-Moore F5, ustornadoes.com joins Ice Station Housman to talk about the 2018 tornado year, Tornado Threat Forecast: April 22-23, 2020, Busting severe storm myths before they bust your forecast, Tornado Threat Forecast: April 19-20, 2020. Peak tornado activity for Northwestern Kansas, Southwestern Nebraska, and Northeastern Colorado occurs in May and June, and to a lesser extent July. This bar chart depicts the length of each tornado season by year in an easier format to read than the above chart. Instead of showing the date of the start and end of each tornado season on the y-axis, the total number of days in each season is shown. The x-axis has been divided into ten day increments, and the y-axis shows the total number of tornadoes occurring within a time frame. Tornadoes can occur in any month of the year across the United States, and it should come as no surprise that the Plains states have the highest frequency of twisters in an average year. It’s only back to 1950 that we have regular data, and even the early part of this history is highly incomplete. Sixty four tornadoes in the historical records were not assigned a rating, perhaps due to lack of information about the tornado. Aviation Weather A total of 767 tornadoes have been reported within these three months which accounts for approximately 81 percent of all reported tornadoes in the Tri-State region. Weather Safety Images This situation would result when more than one tornado occurs on the same day. The upper limit on each bar shows the last day a tornado occurred in a year. The height of each bar indicates the length of each season with taller bars indicating longer seasons. This chart shows the number of tornado days that occurred each year. As the science continues to become better and better, it is worth keeping in mind how quickly things have changed over the modern history. In addition to the maps for each year at bottom, let’s take a brief walk through the history in which the modern tornado record has resided, from 1950 to here. Strong tornadoes are rated EF2 or EF 3. 1952 – 230. Text Weather Index Katie currently works as a GIS Analyst for EA Engineering, Science and Technology, Inc., PBC in Hunt Valley, Maryland. Tornadoes don’t happen in mountains. Digging into the tornado reports a little further, we can also look at the average number of tornadoes reported each year within a decade. The movie was undoubtedly a cause for increased storm chasing in the years and decades ahead. (Sam Barricklow via Flickr). Tornadoes occurring in an open field where there are very few things to damage will receive an EF0 or EF1 rating, even though the tornado may have actually been strong or violent. This set the stage for better forecasts, more accurate warnings for severe weather, and further research into the formation of tornadoes. For example, in 1951, the first tornado of the year occurred in early May and the last tornado occurred in late August. 2011 – 22, Top 5 deadliest years – Total Tornado Deaths: 5,845, 2011 – 553 Our Office Snowfall Analysis Local RSS Feeds So far, the average number of tornado days between 2010 and 2018 is a little under seven days. In terms of absolute tornado counts, the United States leads the list, with an average of over 1,000 tornadoes recorded each year. 2008 – 1,688
The Palm Sunday outbreak in 1965 has been attributed to some of the growth in awareness. Multiple locations were found. So far, the 2010s have averaged around 18 tornadoes per year. This shows a more even distribution of tornadoes reported across each county. Subcategories. Because a tornado may occur at any time of the day or year somewhere in the United States, there really is no national tornado "season" (as there is with Atlantic hurricanes). The number of tornadoes is likely an underestimate to the number of tornadoes that actually occurred. This chart converts the EF ratings from the above chart into percentages. Observed Precipitation NWS This chart shows the number of tornadoes that were reported each year across the Goodland coverage area. Tornado in Oklahoma, May 2015. The bar chart above can be misleading because the counties are not all equal size. Canada is a distant second, with around 100 per year.
Taking a look at the 1974 and 1976 seasons, only one tornado day occurred in each year, making these tornado seasons the shortest on record since 1950. Values on the scale range from F0 for tornadoes producing minimal damage, to F5 for tornadoes causing devastating damage. 1974 – 366 Every year in the United States, tornadoes do about 400 million dollars in damage and kill about 70 people on average. Each year is represented by a green bar. Local Storm Reports, Radar Dr. Ted Fujita developed the F-Scale in 1971 to provide a method to rate the intensity of tornadoes. The nationwide network of Doppler radars was completed by the mid-1990s. History is replete with big tornado events that bring discussion of their destructive force out of hiding. Fourteen tornadoes have been reported between May 1 and May 10. The years 1974 and 1976 are not represented by bars on this chart. This chart is similar to the one above and takes the number of tornado days that occurred in each decade and averages them to determine approximately how many tornado days occurred per year. National Oceanic and Atmospheric Administration The 2000 season ended on October 31st with the “Halloween Outbreak” where a total of 13 tornadoes were reported across seven counties.
Tornado records are released in the spring following the end of each year.
This system is a network of 159 high-resolution S-band Doppler weather radars.
In many ways, it was a generational tornado outbreak like 2011 despite its lower death toll.
This averages to around nine tornadoes each year from 1950-1959. Submit a Storm Report 1965 – 31 Sherman County Kansas comes in a close second place with 107 tornadoes and Yuma County Colorado rounds out the top three with 91 reported tornadoes.
Wikimedia Commons has media related to Tornadoes by year. The 2010s recorded in the bar chart only account for nine years of data (2010-2018). The Annual Tornado Season bar chart depicts the length of each tornado season from 1950 to 2018. Note 2: The SPC online watch archive exists from 2004 to the current year. Observations (Ian Livingston/ustornadoes.com). In 1974, one tornado occurred on April 20th in Rawlins County. Another way to look at the increase in tornado reports is to break down the numbers by decade. Despite advancements, it is possible there are still many tornadoes that are not detected.
Storm and Precipitation Reports For example, the earliest start for a tornado season was between March 1 and 10 and the latest start date for a tornado season occurred between September 11 and September 20 when one tornado was reported.
It was based primarily on the damage tornadoes caused to man-made structures and vegetation. Forecasts were done by hand, on printed weather maps. Since 1990, the number of tornadoes reported has dramatically increased with over 200 tornadoes reported in the 1990s and 2000s. 1953 – 22 These unrated tornadoes are shown in the first column and labeled EF?. Social Dashboard Dr. Fujita's scale was quickly accepted by the NWS and came into wide use by the mid-1970s. (Brian Tang/NCAR).
This is, however, an average and not every year is considered average. In 1952, the first tornado also occurred in early May, however the season was much shorter than the 1951 season with the final tornado occurring in mid-July.
This was later enhanced by shows such as Discovery’s Storm Chasers. For example, on average, four tornado days occurred during each year of the 1970s. The lower end of each bar indicates the date of the first tornado for that year.
The 1990s and 2000s averaged 23-24 tornado reports per year during each ten year period. Winter Storm Severity Index Please try another search. 2011 – 1,691 Due to the small size of the chart, you’ll want to click on it for better readability. Counties in a high risk tornado area include Lincoln County, TN , Davidson County, TN and Franklin County, TN . In addition, the number of storm chasers using video cameras and cell phones to document and report severe weather increased in the 1990s. We will continue to update this post as new data is released. These factors are likely responsible for the large increase in tornadoes reported since the early 1990s.
Returning to the 2018 example from above, 11 tornadoes were reported over a total of five tornado days. It was based primarily on the damage tornadoes caused to man-made structures and vegetation. Event Summaries Or do they? The first reported tornado of the 1992 season occurred on March 8. For example, 55 tornadoes were reported in 2007 and only one tornado was reported in 1974. In the 1950s there was a practical use of numerical weather prediction and development of computers. Plus, let’s cut to the chase: any record is better than no record. Today in Weather History Activity Planner This statistic is misleading since tornado ratings are based on observed damage. Simply because of the large number of convective storms and the favorable environment, the odds are increased that some of these storms will produce tornadoes. Experimental Graphical Hazardous Weather Outlook Taking June as an example, 35 percent of all tornado reports received since 1950 have occurred during that month, while 30 percent have occurred in May. Volumetric scans also became available allowing further investigation of storms on radar and providing detailed wind information. In May of 1982 it began broadcasting around the clock, and provided more information during severe weather outbreaks. Tennessee averages 18 tornados per year, resulting in an average of 5 fatalities. All NOAA. The Mid-1970s also featured the first GOES satellite, which was launched into orbit in October of 1975. Dundy and Hitchcock counties in Nebraska have had the fewest tornado occurrences since 1950, with 26 and 27 tornado reports respectively. Tornadoes by year. The season began on April 2 with an EF0 tornado in Cheyenne County Colorado and ended with a late season outbreak on November 16. Since 1950, the 2015 tornado season is the longest on record at 229 days. Partly built from cobbled-together news accounts and the subjective ratings that come with them, the tornado record is fraught with issues, but it also tells a bunch of stories. And no, the presence of the Doppler radar in Goodland is not to blame! 1957 – 26 1965 – 301 The intent of the scale was to distinguish between weak and strong tornadoes. While we have a good idea of the ceilings, with big years like 2011 and 2008 behind us, there is still much we don’t know.
Questions? This data is a little skewed since only nine years (2010-2018) are averaged into the total. detecting any rotation present in a storm at different scan angles, May 3-4, 1999 tornado outbreak and the Bridge Creek-Moore F5, ustornadoes.com joins Ice Station Housman to talk about the 2018 tornado year, Tornado Threat Forecast: April 22-23, 2020, Busting severe storm myths before they bust your forecast, Tornado Threat Forecast: April 19-20, 2020. Peak tornado activity for Northwestern Kansas, Southwestern Nebraska, and Northeastern Colorado occurs in May and June, and to a lesser extent July. This bar chart depicts the length of each tornado season by year in an easier format to read than the above chart. Instead of showing the date of the start and end of each tornado season on the y-axis, the total number of days in each season is shown. The x-axis has been divided into ten day increments, and the y-axis shows the total number of tornadoes occurring within a time frame. Tornadoes can occur in any month of the year across the United States, and it should come as no surprise that the Plains states have the highest frequency of twisters in an average year. It’s only back to 1950 that we have regular data, and even the early part of this history is highly incomplete. Sixty four tornadoes in the historical records were not assigned a rating, perhaps due to lack of information about the tornado. Aviation Weather A total of 767 tornadoes have been reported within these three months which accounts for approximately 81 percent of all reported tornadoes in the Tri-State region. Weather Safety Images This situation would result when more than one tornado occurs on the same day. The upper limit on each bar shows the last day a tornado occurred in a year. The height of each bar indicates the length of each season with taller bars indicating longer seasons. This chart shows the number of tornado days that occurred each year. As the science continues to become better and better, it is worth keeping in mind how quickly things have changed over the modern history. In addition to the maps for each year at bottom, let’s take a brief walk through the history in which the modern tornado record has resided, from 1950 to here. Strong tornadoes are rated EF2 or EF 3. 1952 – 230. Text Weather Index Katie currently works as a GIS Analyst for EA Engineering, Science and Technology, Inc., PBC in Hunt Valley, Maryland. Tornadoes don’t happen in mountains. Digging into the tornado reports a little further, we can also look at the average number of tornadoes reported each year within a decade. The movie was undoubtedly a cause for increased storm chasing in the years and decades ahead. (Sam Barricklow via Flickr). Tornadoes occurring in an open field where there are very few things to damage will receive an EF0 or EF1 rating, even though the tornado may have actually been strong or violent. This set the stage for better forecasts, more accurate warnings for severe weather, and further research into the formation of tornadoes. For example, in 1951, the first tornado of the year occurred in early May and the last tornado occurred in late August. 2011 – 22, Top 5 deadliest years – Total Tornado Deaths: 5,845, 2011 – 553 Our Office Snowfall Analysis Local RSS Feeds So far, the average number of tornado days between 2010 and 2018 is a little under seven days. In terms of absolute tornado counts, the United States leads the list, with an average of over 1,000 tornadoes recorded each year. 2008 – 1,688