| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F Zone 4b: -25°F to -20°F Zone 6a: -10°F to -5°F Zone 4a: -30°F to -25°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F | |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F | |
| Average First Frost Date: | Aug. 11 - Aug. 20 | |
| Average Last Frost Date: | Jul. 11 - Jul. 20 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | 21c - Crystalline Mid-Elevation Forests and Shrublands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 80816 - Florissant, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 5 | 7 | 16 | 21 | 31 | 37 | 43 | 42 | 34 | 24 | 13 | 5 | 23 |
| Avg Max Temp (°F) | 38 | 41 | 47 | 50 | 62 | 72 | 76 | 75 | 69 | 58 | 44 | 38 | 56 |
| Avg Precip (In.) | .32 | .39 | .94 | 1.26 | 1.74 | 1.51 | 2.7 | 3.04 | 1.42 | .85 | .63 | .39 | 15.19 |