Climate change in Chickasaw County, Iowa
Since 1979, Chickasaw County, Iowa has warmed 2.0°F, with 3 fewer days above 90°F, 1 fewer nights above 70°F and 9% more precipitation a year. Its climate in 1996–2025 is most like Delaware County, IA's was in 1951–1980.
- Average temperature: +2.0°F
- Summer highs (Jun–Aug): −0.2°F
- Winter lows (Dec–Feb): +4.1°F
- Precipitation: +9%
- Wettest day of the year: +26%
- Longest dry spell: +2 days
- Days above 90°F: −3 days
- Nights above 70°F: −1 days
- Freezing nights: −8 days
- Frost-free season: +12 days
- Muggy days: +6 days
- Summer heat index (Jun–Aug): +0.2°F
- Extreme fire-weather days: +13 days
- Snowfall: −5%
- Snowy days (1 inch or more): −1 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.