Heavy Rain in Nassau County, Florida

Heavy Rain in Nassau County, Florida: 46 recorded events between 2004 and 2025. The strongest on record measured 0. That places the county #104 nationally and #10 statewide for this hazard.

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

The busiest decade for heavy rain in Nassau County is the 2020s, when 33 of the county's 46 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 Nassau County archive, heavy rain makes up 9.6% of all recorded severe weather across 11 hazard types. Nationally the county sits at #104 for this hazard and #10 within Florida, putting it in the 95.7 percentile of all U.S. counties.

Aug is the peak month for heavy rain in Nassau County with 11 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 261
• Hail 95

Written by National Weather Service staff at the time of the event · public domain

How many heavy rain events are on record in Nassau County, Florida?

46 heavy rain events are recorded in Nassau County between 2004 and 2025, causing 0 direct deaths.

What is the strongest heavy rain recorded in Nassau County?

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

Where does the heavy rain data for Nassau 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.