Heavy Rain in Duval County, Florida

Heavy Rain in Duval County, Florida: 300 recorded events between 2003 and 2025. The strongest on record measured 362. That places the county #6 nationally and #1 statewide for this hazard.

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

The busiest decade for heavy rain in Duval County is the 2020s, when 133 of the county's 300 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 Duval County archive, heavy rain makes up 17.1% of all recorded severe weather across 11 hazard types. Nationally the county sits at #6 for this hazard and #1 within Florida, putting it in the 99.8 percentile of all U.S. counties.

Aug is the peak month for heavy rain in Duval County with 74 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 755
• Hail 286
• Lightning 110
• Flood 102
• Tornado 77
• Flash Flood 54
• Funnel Cloud 48

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

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

300 heavy rain events are recorded in Duval County between 2003 and 2025, causing 0 direct deaths.

What is the strongest heavy rain recorded in Duval County?

The strongest heavy rain on record in Duval County measured 362.

Where does the heavy rain data for Duval 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.