Allenspark, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from 28.7 °F (low) to 53 °F (high). Annual precipitation averages 22.8 Inches. Allenspark is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Aug. 21 - Aug. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.4 °F | 33.8 °F | 1.09 in. |
| February | 15.6 °F | 35.5 °F | 1.25 in. |
| March | 20.2 °F | 42.9 °F | 2.07 in. |
| April | 24.7 °F | 48.8 °F | 2.94 in. |
| May | 32.6 °F | 58.1 °F | 2.99 in. |
| June | 39.8 °F | 69.8 °F | 1.84 in. |
| July | 46.3 °F | 76.3 °F | 2.59 in. |
| August | 44.9 °F | 74.0 °F | 2.28 in. |
| September | 38.2 °F | 66.6 °F | 2.07 in. |
| October | 29.6 °F | 54.0 °F | 1.45 in. |
| November | 21.7 °F | 41.9 °F | 1.17 in. |
| December | 15.9 °F | 33.9 °F | 1.08 in. |
| Annual | 28.7 °F | 53 °F | 22.82 in. |
| Average First Frost Date | Aug. 21 - Aug. 31 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfc - Subarctic With Cool Summers And Year Around Rainfall |