Climate change in Putnam County, New York
Since 1979, Putnam County, New York has warmed 3.5°F, with 5 more days above 90°F, 8 more nights above 70°F and 6% less precipitation a year. Its climate in 1996–2025 is most like Westchester County, NY's was in 1951–1980.
- Average temperature: +3.5°F
- Summer highs (Jun–Aug): +2.5°F
- Winter lows (Dec–Feb): +4.8°F
- Precipitation: −6%
- Wettest day of the year: +4%
- Longest dry spell: −1 days
- Days above 90°F: +5 days
- Nights above 70°F: +8 days
- Freezing nights: −15 days
- Frost-free season: +33 days
- Muggy days: +12 days
- Summer heat index (Jun–Aug): +4.0°F
- Extreme fire-weather days: +10 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.