Hail in Niobrara County, Wyoming

Hail in Niobrara County, Wyoming: 214 recorded events between 1965 and 2025. The strongest on record measured 4.25. That places the county #557 nationally and #8 statewide for this hazard.

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for hail in Niobrara County is the 2010s, when 97 of the county's 214 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.

Within the Niobrara County archive, hail makes up 70.6% of all recorded severe weather across 7 hazard types. Nationally the county sits at #557 for this hazard and #8 within Wyoming, putting it in the 82.2 percentile of all U.S. counties.

Jul is the peak month for hail in Niobrara County with 75 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.

• Thunderstorm Wind 41

How many hail events are on record in Niobrara County, Wyoming?

214 hail events are recorded in Niobrara County between 1965 and 2025, causing 0 direct deaths.

What is the strongest hail recorded in Niobrara County?

The strongest hail on record in Niobrara County measured 4.25.

Where does the hail data for Niobrara County come from?

All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.