Climate change in Audubon County, Iowa
Since 1979, Audubon County, Iowa has warmed 1.8°F, with 5 fewer days above 90°F, 1 fewer nights above 70°F and 3% more precipitation a year. Its climate in 1996–2025 is most like Johnson County, IA's was in 1951–1980.
- Average temperature: +1.8°F
- Summer highs (Jun–Aug): −0.0°F
- Winter lows (Dec–Feb): +3.4°F
- Precipitation: +3%
- Wettest day of the year: +2%
- Longest dry spell: +4 days
- Days above 90°F: −5 days
- Nights above 70°F: −1 days
- Freezing nights: −14 days
- Frost-free season: +18 days
- Muggy days: +9 days
- Summer heat index (Jun–Aug): +0.2°F
- Extreme fire-weather days: +11 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.