Climate change in Foster County, North Dakota
Since 1979, Foster County, North Dakota has warmed 1.3°F, with 6 fewer days above 90°F, about the same number of nights above 70°F and 3% less precipitation a year. Its climate in 1996–2025 is most like LaMoure County, ND's was in 1951–1980.
- Average temperature: +1.3°F
- Summer highs (Jun–Aug): −0.1°F
- Winter lows (Dec–Feb): +2.9°F
- Precipitation: −3%
- Wettest day of the year: +4%
- Longest dry spell: +2 days
- Days above 90°F: −6 days
- Nights above 70°F: −0 days
- Freezing nights: −7 days
- Frost-free season: +15 days
- Muggy days: +4 days
- Summer heat index (Jun–Aug): +0.5°F
- Extreme fire-weather days: −0 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.