Climate change in Adair County, Missouri
Since 1979, Adair County, Missouri has warmed 2.4°F, with 5 more days above 90°F, 2 fewer nights above 70°F and 8% more precipitation a year. Its climate in 1996–2025 is most like Shelby County, MO's was in 1951–1980.
- Average temperature: +2.4°F
- Summer highs (Jun–Aug): +1.3°F
- Winter lows (Dec–Feb): +3.1°F
- Precipitation: +8%
- Wettest day of the year: +54%
- Longest dry spell: −6 days
- Days above 90°F: +5 days
- Nights above 70°F: −2 days
- Freezing nights: −9 days
- Frost-free season: +4 days
- Muggy days: +9 days
- Summer heat index (Jun–Aug): +2.8°F
- Extreme fire-weather days: +5 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.