Estes Park, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from -0.6 °C (low) to 13.7 °C (high). Annual precipitation averages 452.6 Millimeters. Estes Park is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.9 °C | 3.2 °C | 17.27 mm |
| February | -8.6 °C | 3.9 °C | 19.05 mm |
| March | -5.1 °C | 8.2 °C | 39.62 mm |
| April | -2.8 °C | 11.3 °C | 53.59 mm |
| May | 1.7 °C | 16.4 °C | 62.99 mm |
| June | 6.1 °C | 23.1 °C | 44.96 mm |
| July | 9.3 °C | 26.4 °C | 56.64 mm |
| August | 8.2 °C | 25.3 °C | 54.1 mm |
| September | 4.4 °C | 21.4 °C | 39.37 mm |
| October | -0.3 °C | 14.4 °C | 27.18 mm |
| November | -4.3 °C | 7.6 °C | 21.34 mm |
| December | -8 °C | 3 °C | 16.51 mm |
| Annual | -0.6 °C | 13.7 °C | 452.62 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| 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 |