Climate change in Parmer County, Texas
Since 1979, Parmer County, Texas has warmed 3.4°F, with 28 more days above 90°F, 3 more nights above 70°F and 8% less precipitation a year. Its climate in 1996–2025 is most like Lamb County, TX's was in 1951–1980.
- Average temperature: +3.4°F
- Summer highs (Jun–Aug): +3.8°F
- Winter lows (Dec–Feb): +2.3°F
- Precipitation: −8%
- Wettest day of the year: −2%
- Longest dry spell: +14 days
- Days above 90°F: +28 days
- Nights above 70°F: +3 days
- Freezing nights: −19 days
- Frost-free season: +10 days
- Muggy days: +1 days
- Summer heat index (Jun–Aug): +3.1°F
- Extreme fire-weather days: +31 days
- Snowfall: −36%
- 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.