Climate change in Clark County, Nevada
Since 1979, Clark County, Nevada has warmed 2.5°F, with 14 more days above 90°F, 31 more nights above 70°F and 30% less precipitation a year. Its climate in 1996–2025 is most like San Bernardino County, CA's was in 1951–1980.
- Average temperature: +2.5°F
- Summer highs (Jun–Aug): +3.4°F
- Winter lows (Dec–Feb): +0.8°F
- Precipitation: −30%
- Wettest day of the year: −3%
- Longest dry spell: +25 days
- Days above 90°F: +14 days
- Nights above 70°F: +31 days
- Freezing nights: −4 days
- Frost-free season: +9 days
- Muggy days: +0 days
- Summer heat index (Jun–Aug): +2.2°F
- Extreme fire-weather days: +11 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.