| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F Zone 8a: 10°F to 15°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Nov. 11 - Nov. 20 | |
| Average Last Frost Date: | Mar. 21 - Mar. 31 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 85635 - Sierra Vista, AZ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 37 | 40 | 46 | 54 | 63 | 66 | 64 | 60 | 51 | 40 | 35 | 49 |
| Avg Max Temp (°F) | 60 | 63 | 68 | 75 | 83 | 87 | 90 | 88 | 86 | 77 | 67 | 60 | 75 |
| Avg Precip (In.) | .99 | .75 | .54 | .22 | .21 | .58 | 3.25 | 3.13 | 1.53 | 1.4 | .74 | 1.1 | 14.46 |