| 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 6b: -5°F to 0°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 13i - Malad and Cache Valleys | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 84333 - Richmond, UT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 16 | 24 | 31 | 39 | 46 | 51 | 50 | 41 | 31 | 23 | 14 | 32 |
| Avg Max Temp (°F) | 32 | 38 | 48 | 57 | 69 | 79 | 89 | 88 | 76 | 62 | 45 | 33 | 60 |
| Avg Precip (In.) | 1.93 | 1.6 | 1.94 | 2.16 | 2.42 | 1.34 | .89 | .91 | 1.26 | 1.81 | 1.46 | 1.55 | 19.28 |