Climate change in Harper County, Kansas
Since 1979, Harper County, Kansas has warmed 2.1°F, with 1 fewer days above 90°F, 4 more nights above 70°F and 2% more precipitation a year. Its climate in 1996–2025 is most like Kay County, OK's was in 1951–1980.
- Average temperature: +2.1°F
- Summer highs (Jun–Aug): −1.1°F
- Winter lows (Dec–Feb): +2.4°F
- Precipitation: +2%
- Wettest day of the year: +8%
- Longest dry spell: +5 days
- Days above 90°F: −1 days
- Nights above 70°F: +4 days
- Freezing nights: −11 days
- Frost-free season: −5 days
- Muggy days: +24 days
- Summer heat index (Jun–Aug): −0.4°F
- Extreme fire-weather days: +6 days
- Snowfall: −60%
- 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.