| 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 | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Sep. 21 - Sep. 30 | |
| Average Last Frost Date: | May 21 - May 31 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | 13b - Shadscale-Dominated Saline Basins | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 84624 - Delta, UT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 20 | 27 | 33 | 41 | 49 | 57 | 55 | 45 | 34 | 23 | 15 | 34 |
| Avg Max Temp (°F) | 38 | 46 | 56 | 64 | 74 | 86 | 93 | 91 | 81 | 68 | 51 | 40 | 66 |
| Avg Precip (In.) | .6 | .65 | .86 | .85 | 1.01 | .49 | .56 | .65 | .83 | 1.02 | .66 | .45 | 8.63 |