Climate change in Fremont County, Iowa
Since 1979, Fremont County, Iowa has warmed 1.9°F, with 7 fewer days above 90°F, 1 more nights above 70°F and 8% less precipitation a year. Its climate in 1996–2025 is most like Grundy County, MO's was in 1951–1980.
- Average temperature: +1.9°F
- Summer highs (Jun–Aug): −0.2°F
- Winter lows (Dec–Feb): +2.2°F
- Precipitation: −8%
- Wettest day of the year: −27%
- Longest dry spell: +2 days
- Days above 90°F: −7 days
- Nights above 70°F: +1 days
- Freezing nights: −7 days
- Frost-free season: +18 days
- Muggy days: +10 days
- Summer heat index (Jun–Aug): −0.3°F
- Extreme fire-weather days: +11 days
- Snowfall: −27%
- Snowy days (1 inch or more): −3 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.