Kremmling, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from -5 °C (low) to 13 °C (high). Annual precipitation averages 289.6 Millimeters. Kremmling is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -18.4 °C | -2.8 °C | 18.8 mm |
| February | -15.3 °C | 0.3 °C | 17.53 mm |
| March | -8.8 °C | 6.9 °C | 17.53 mm |
| April | -4.2 °C | 12.4 °C | 26.92 mm |
| May | 0 °C | 17.9 °C | 32.77 mm |
| June | 3.6 °C | 24.4 °C | 23.88 mm |
| July | 7.1 °C | 27.8 °C | 34.29 mm |
| August | 5.8 °C | 26.4 °C | 33.53 mm |
| September | 1.4 °C | 22.5 °C | 28.7 mm |
| October | -4.2 °C | 14.9 °C | 22.35 mm |
| November | -9.7 °C | 6.2 °C | 14.99 mm |
| December | -16.7 °C | -1.4 °C | 18.29 mm |
| Annual | -5 °C | 13 °C | 289.58 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Dfc - Subarctic With Cool Summers And Year Around Rainfall |