Climate change in Tillman County, Oklahoma
Since 1979, Tillman County, Oklahoma has warmed 2.9°F, with 21 more days above 90°F, 14 more nights above 70°F and 7% less precipitation a year. Its climate in 1996–2025 is most like Clay County, TX's was in 1951–1980.
- Average temperature: +2.9°F
- Summer highs (Jun–Aug): +2.0°F
- Winter lows (Dec–Feb): +2.4°F
- Precipitation: −7%
- Wettest day of the year: −5%
- Longest dry spell: −3 days
- Days above 90°F: +21 days
- Nights above 70°F: +14 days
- Freezing nights: −10 days
- Frost-free season: +4 days
- Muggy days: +15 days
- Summer heat index (Jun–Aug): +2.8°F
- Extreme fire-weather days: +16 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.