| 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 Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 13f - Moist Wasatch Front Footslopes | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 84302 - Brigham City, UT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 21 | 28 | 33 | 41 | 48 | 54 | 54 | 44 | 35 | 25 | 18 | 35 |
| Avg Max Temp (°F) | 35 | 41 | 51 | 56 | 69 | 77 | 87 | 87 | 76 | 60 | 44 | 35 | 60 |
| Avg Precip (In.) | 2.31 | 1.66 | 2.07 | 2.15 | 2.14 | 1.36 | .65 | .81 | 1.33 | 1.83 | 2 | 1.88 | 20.17 |