| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 85936 - Saint Johns, AZ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 23 | 29 | 34 | 42 | 51 | 58 | 56 | 49 | 37 | 26 | 19 | 37 |
| Avg Max Temp (°F) | 49 | 55 | 61 | 69 | 78 | 88 | 89 | 87 | 81 | 71 | 58 | 49 | 69 |
| Avg Precip (In.) | .76 | .58 | .79 | .46 | .47 | .51 | 1.75 | 2.34 | 1.43 | 1.17 | .68 | .71 | 11.62 |