Heavy Rain in Jasper County, Iowa

Heavy Rain in Jasper County, Iowa: 70 recorded events between 2009 and 2024. The strongest on record measured 0. That places the county #49 nationally and #14 statewide for this hazard.

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

The busiest decade for heavy rain in Jasper County is the 2010s, when 58 of the county's 70 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 Jasper County archive, heavy rain makes up 12.1% of all recorded severe weather across 8 hazard types. Nationally the county sits at #49 for this hazard and #14 within Iowa, putting it in the 98.0 percentile of all U.S. counties.

Aug is the peak month for heavy rain in Jasper County with 13 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.

• Hail 220
• Thunderstorm Wind 189
• Tornado 45

How many heavy rain events are on record in Jasper County, Iowa?

70 heavy rain events are recorded in Jasper County between 2009 and 2024, causing 0 direct deaths.

What is the strongest heavy rain recorded in Jasper County?

The strongest heavy rain on record in Jasper County measured 0.

Where does the heavy rain data for Jasper 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.