Climate change in Hartley County, Texas
Since 1979, Hartley County, Texas has warmed 2.8°F, with 26 more days above 90°F, 2 more nights above 70°F and 21% less precipitation a year. Its climate in 1996–2025 is most like Oldham County, TX's was in 1951–1980.
- Average temperature: +2.8°F
- Summer highs (Jun–Aug): +3.3°F
- Winter lows (Dec–Feb): +1.8°F
- Precipitation: −21%
- Wettest day of the year: −18%
- Longest dry spell: +8 days
- Days above 90°F: +26 days
- Nights above 70°F: +2 days
- Freezing nights: −12 days
- Frost-free season: +15 days
- Muggy days: +1 days
- Summer heat index (Jun–Aug): +2.8°F
- Extreme fire-weather days: +35 days
- Snowfall: −38%
- Snowy days (1 inch or more): +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.