| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Sep.1 - Sep. 10 | |
| Average Last Frost Date: | Jul. 21 - Jul. 31 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | 19g - Mountain Valleys | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 84627 - Ephraim, UT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 18 | 25 | 31 | 38 | 45 | 52 | 51 | 43 | 33 | 22 | 15 | 32 |
| Avg Max Temp (°F) | 37 | 43 | 51 | 60 | 70 | 81 | 89 | 86 | 77 | 64 | 48 | 39 | 62 |
| Avg Precip (In.) | 1.04 | 1.1 | 1.41 | 1.18 | 1.3 | .68 | .79 | .88 | 1.22 | 1.37 | 1.11 | .9 | 12.99 |