Allenspark, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from -1.8 °C (low) to 11.6 °C (high). Annual precipitation averages 579.7 Millimeters. 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 | -9.2 °C | 1 °C | 27.69 mm |
| February | -9.1 °C | 1.9 °C | 31.75 mm |
| March | -6.6 °C | 6.1 °C | 52.58 mm |
| April | -4.1 °C | 9.3 °C | 74.68 mm |
| May | 0.3 °C | 14.5 °C | 75.95 mm |
| June | 4.3 °C | 21 °C | 46.74 mm |
| July | 7.9 °C | 24.6 °C | 65.79 mm |
| August | 7.2 °C | 23.3 °C | 57.91 mm |
| September | 3.4 °C | 19.2 °C | 52.58 mm |
| October | -1.3 °C | 12.2 °C | 36.83 mm |
| November | -5.7 °C | 5.5 °C | 29.72 mm |
| December | -8.9 °C | 1.1 °C | 27.43 mm |
| Annual | -1.8 °C | 11.6 °C | 579.65 mm |
| 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 : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfc - Subarctic With Cool Summers And Year Around Rainfall |