| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F |
| 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: | 26i - Pine-Oak Woodlands |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 80116 - Franktown, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 17 | 23 | 30 | 39 | 48 | 54 | 52 | 43 | 32 | 21 | 15 | 32 |
| Avg Max Temp (°F) | 43 | 46 | 52 | 59 | 68 | 79 | 85 | 83 | 75 | 65 | 51 | 45 | 63 |
| Avg Precip (In.) | .52 | .53 | 1.4 | 1.86 | 2.53 | 1.93 | 2.24 | 2.15 | 1.28 | 1.02 | .97 | .67 | 17.1 |