| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°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: | 22b - San Luis Alluvial Flats and Wetlands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 81123 - Blanca, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 4 | 11 | 20 | 26 | 35 | 43 | 48 | 47 | 39 | 28 | 16 | 6 | 27 |
| Avg Max Temp (°F) | 34 | 40 | 48 | 56 | 66 | 76 | 80 | 78 | 71 | 61 | 45 | 36 | 58 |
| Avg Precip (In.) | .34 | .35 | .63 | .69 | 1.08 | .81 | 1.61 | 1.7 | 1.17 | .9 | .61 | .38 | 10.27 |