Dataset Gallery

To find datasets of interest, glance through the entries below, enter a search term to the left, or click terms under the filters to refine the list.

Average Annual and Monthly Numbers of Tornadoes by State - Maps

U.S. Tornado Climatology

Tornadoes can occur anyplace, but they are more likely in some locations than others. Check maps that show the average number of tornadoes in each of the United States over a year or by month, based on tornado observation

U.S. Climate Extremes Index - Graph or Map

U.S. Climate Extremes Index (CEI)

The U.S. Climate Extremes Index documents the area of the contiguous United States (or a region therein) that experienced extreme conditions (as defined by the index) during various time periods.

Extreme Weather Records by State - Data Table

State Climate Extremes Committee

What were the highest and lowest temperatures in your state, and when and where were they measured?

Severe Storms and Extreme Events - Data Table

Storm Events Database

Severe events have the potential to damage life and property.