Climate change in La Paz County, Arizona
Since 1979, La Paz County, Arizona has warmed 2.4°F, with 15 more days above 90°F, 22 more nights above 70°F and 28% less precipitation a year. Its climate in 1996–2025 is most like Imperial County, CA's was in 1951–1980.
- Average temperature: +2.4°F
- Summer highs (Jun–Aug): +3.1°F
- Winter lows (Dec–Feb): +0.8°F
- Precipitation: −28%
- Wettest day of the year: −7%
- Longest dry spell: +21 days
- Days above 90°F: +15 days
- Nights above 70°F: +22 days
- Freezing nights: −1 days
- Frost-free season: +7 days
- Muggy days: −2 days
- Summer heat index (Jun–Aug): +1.8°F
- Extreme fire-weather days: +19 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.