Climate change in Santa Cruz County, Arizona
Since 1979, Santa Cruz County, Arizona has warmed 2.1°F, with 29 more days above 90°F, 1 more nights above 70°F and 23% less precipitation a year. Its climate in 1996–2025 is most like Cochise County, AZ's was in 1951–1980.
- Average temperature: +2.1°F
- Summer highs (Jun–Aug): +2.7°F
- Winter lows (Dec–Feb): −0.9°F
- Precipitation: −23%
- Wettest day of the year: −4%
- Longest dry spell: +23 days
- Days above 90°F: +29 days
- Nights above 70°F: +1 days
- Freezing nights: +1 days
- Frost-free season: +6 days
- Muggy days: +2 days
- Summer heat index (Jun–Aug): +2.4°F
- Extreme fire-weather days: +26 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.