Climate change in Hillsborough County, Florida
Since 1979, Hillsborough County, Florida has warmed 3.1°F, with 43 more days above 90°F, 41 more nights above 70°F and 5% more precipitation a year. Its climate in 1996–2025 is most like Lee County, FL's was in 1951–1980.
- Average temperature: +3.1°F
- Summer highs (Jun–Aug): +1.6°F
- Winter lows (Dec–Feb): +4.0°F
- Precipitation: +5%
- Wettest day of the year: +36%
- Longest dry spell: +0 days
- Days above 90°F: +43 days
- Nights above 70°F: +41 days
- Freezing nights: −3 days
- Frost-free season: +27 days
- Muggy days: +12 days
- Summer heat index (Jun–Aug): +3.4°F
- Extreme fire-weather days: +16 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.