| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| 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: | 26e - Piedmont Plains and Tablelands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 81039 - Fowler, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 19 | 27 | 35 | 46 | 55 | 59 | 58 | 49 | 36 | 23 | 16 | 36 |
| Avg Max Temp (°F) | 46 | 52 | 61 | 69 | 78 | 89 | 93 | 91 | 83 | 72 | 56 | 47 | 70 |
| Avg Precip (In.) | .2 | .2 | .71 | 1.14 | 1.77 | 1.34 | 1.79 | 1.99 | .77 | .64 | .48 | .28 | 11.32 |