Roofing & storm datasets
Free, citable, downloadable datasets for roofing and storm research. Our storm history datasets are derived from the NOAA Storm Events Database and the NWS Storm Prediction Center (SPC). Our roof statistics datasets are privacy-safe aggregates computed from measured roofs — individual properties are never shown. Every dataset is available as JSON and CSV.
Storm data attribution: NOAA Storm Events Database / NWS Storm Prediction Center (SPC), public domain.
Storm history datasets
Hail, wind, and tornado event history by city. Browse by state below.
Alabama
Arizona
Arkansas
Georgia
Indiana
Kansas
Minnesota
Missouri
Nebraska
Nevada
North Carolina
Oklahoma
Tennessee
Roof statistics datasets
Aggregate roof measurements — average roof area, facet count, edge lengths, and predominant pitch — by city.
Roof-measurement datasets publish automatically as coverage grows (min. 30 measured roofs per city). Check back soon, or measure a roof to help coverage along.
Want data for a specific property?
Get a free, instant roof report with precise measurements — or talk to us about the data API for contractors and lead platforms.