| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°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: | 25d - Flat to Rolling Plains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 80807 - Burlington, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 19 | 24 | 33 | 44 | 55 | 59 | 58 | 49 | 36 | 24 | 16 | 36 |
| Avg Max Temp (°F) | 40 | 45 | 53 | 62 | 71 | 83 | 89 | 86 | 78 | 66 | 50 | 42 | 64 |
| Avg Precip (In.) | .34 | .41 | 1.06 | 1.41 | 2.94 | 2.49 | 2.76 | 2.25 | 1.05 | .9 | .61 | .34 | 16.56 |