Climate change in Washington County, Minnesota
Since 1979, Washington County, Minnesota has warmed 2.4°F, with 1 more days above 90°F, 1 more nights above 70°F and about the same precipitation a year. Its climate in 1996–2025 is most like Grant County, WI's was in 1951–1980.
- Average temperature: +2.4°F
- Summer highs (Jun–Aug): +1.0°F
- Winter lows (Dec–Feb): +4.5°F
- Precipitation: +0%
- Wettest day of the year: −2%
- Longest dry spell: +5 days
- Days above 90°F: +1 days
- Nights above 70°F: +1 days
- Freezing nights: −12 days
- Frost-free season: +14 days
- Muggy days: +3 days
- Summer heat index (Jun–Aug): +1.4°F
- Extreme fire-weather days: +16 days
- Snowfall: −1%
- Snowy days (1 inch or more): −2 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.