Tornado Statistics

Strong December tornadoes in the United States

The most damaging of tornadoes are relatively infrequent in the cool season, but they do happen, and they tend to…

12 years ago

December tornado climatology of the United States

December begins the bottom of tornado activity in a normal year. That trends lasts through most of the winter or…

12 years ago

Strong November tornadoes in the United States

There is a bit of a spike in strong tornado activity in November across the record. Mississippi and Alabama lead…

12 years ago

November tornado climatology of the United States

Though November can be part of a late-year secondary peak in activity, most years are fairly quiet compared to earlier…

12 years ago

Significant October Tornadoes in the United States

Compared to the drop in overall tornadoes in October from September, the rate of decrease among strong or significant (F2/EF-2+)…

12 years ago

U.S. Tornadoes: The Month of October by the Numbers

October is the fourth least productive month of the year when it comes to overall tornado counts. While there is…

12 years ago

Significant September Tornadoes in the United States

Throughout the historical period, September continues the late-summer trend of fewer significant (F2/EF-2+) tornadoes. It's top end year is not…

12 years ago

U.S. Tornadoes: The Month of September by the Numbers

There's little doubt as we get into September that the off season for tornadoes is upon us. The month is…

12 years ago

Hurricane Isaac’s tornado production from late August through early September 2012

After hurricane Isaac made landfall across southern Louisiana late Tuesday August 28 and into early Wednesday, August 29, tornado warnings…

12 years ago

Significant August Tornadoes in the United States

From 1950-2011, August has consistently seen fairly low numbers of strong/significant tornadoes rated F2/EF-2 or higher, though its ratio of…

12 years ago

U.S. Tornadoes: The Month of August by the Numbers

While August is the fifth most tornado-filled month of the year in the U.S. by overall numbers (1950-2011), it's the…

12 years ago

Significant July Tornadoes in the United States

July continues the trend in recent months of a smaller ratio of significant tornadoes, or those F2/EF-2 and stronger, to…

12 years ago