| 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 7a: 0°F to 5°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 5a: -20°F to -15°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: | Sep.1 - Sep. 10 |
| Average Last Frost Date: | Jul. 1 - Jul. 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 13f - Moist Wasatch Front Footslopes |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 84004 - Alpine, UT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 22 | 29 | 35 | 42 | 50 | 57 | 56 | 47 | 37 | 27 | 20 | 37 |
| Avg Max Temp (°F) | 37 | 44 | 53 | 61 | 71 | 82 | 90 | 88 | 78 | 65 | 48 | 38 | 63 |
| Avg Precip (In.) | 1.88 | 1.63 | 1.82 | 1.8 | 1.99 | .88 | .76 | .96 | 1.3 | 1.85 | 1.56 | 1.58 | 18.02 |