| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Sep. 21 - Sep. 30 | |
| Average Last Frost Date: | May 21 - May 31 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 13i - Malad and Cache Valleys | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 84339 - Wellsville, UT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 17 | 26 | 32 | 40 | 47 | 53 | 52 | 42 | 32 | 23 | 14 | 33 |
| Avg Max Temp (°F) | 33 | 39 | 49 | 57 | 67 | 78 | 87 | 86 | 76 | 62 | 45 | 34 | 59 |
| Avg Precip (In.) | 1.77 | 1.7 | 1.96 | 1.99 | 2.25 | 1.25 | .88 | .93 | 1.47 | 1.97 | 1.64 | 1.55 | 19.36 |