| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Sep. 21 - Sep. 30 | |
| Average Last Frost Date: | Jun. 11 - Jun. 20 | |
| Koppen-Geiger Climate Zone: | Dsa - Humid Continental Climate - Dry Warm Summer | |
| Ecoregion: | 20a - Monticello-Cortez Uplands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 84535 - Monticello, UT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 19 | 25 | 31 | 38 | 46 | 53 | 52 | 44 | 34 | 23 | 16 | 33 |
| Avg Max Temp (°F) | 35 | 40 | 48 | 57 | 66 | 77 | 82 | 80 | 72 | 60 | 45 | 37 | 58 |
| Avg Precip (In.) | 1.91 | 1.32 | 1.25 | .94 | 1.07 | .67 | 1.41 | 1.96 | 1.59 | 1.89 | 1.54 | 1.28 | 16.83 |