| 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 5a: -20F to -15F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | 25d - Flat to Rolling Plains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 80728 - Fleming, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 19 | 25 | 33 | 44 | 53 | 59 | 57 | 47 | 35 | 24 | 16 | 35 |
| Avg Max Temp (°F) | 39 | 45 | 53 | 62 | 71 | 82 | 89 | 87 | 79 | 66 | 49 | 41 | 64 |
| Avg Precip (In.) | .35 | .37 | 1.04 | 1.57 | 3.11 | 2.71 | 2.83 | 1.97 | 1.24 | .78 | .59 | .34 | 16.91 |