Fraser, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from 20.6 °F (low) to 52.4 °F (high). Annual precipitation averages 19.8 Inches. Fraser is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around Jun. 21 - Jun. 30 through the first frost around July 11 - July 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.9 °F | 30.5 °F | 1.77 in. |
| February | 4.3 °F | 33.9 °F | 1.54 in. |
| March | 11.9 °F | 41.9 °F | 1.76 in. |
| April | 19.9 °F | 49.5 °F | 2.36 in. |
| May | 27.7 °F | 59.2 °F | 1.78 in. |
| June | 34.2 °F | 70.9 °F | 1.21 in. |
| July | 39.8 °F | 76.0 °F | 1.51 in. |
| August | 38.1 °F | 73.8 °F | 1.76 in. |
| September | 31.2 °F | 67.2 °F | 1.58 in. |
| October | 22.3 °F | 54.6 °F | 1.45 in. |
| November | 12.3 °F | 40.7 °F | 1.43 in. |
| December | 3.2 °F | 30.4 °F | 1.68 in. |
| Annual | 20.6 °F | 52.4 °F | 19.83 in. |
| Average First Frost Date | July 11 - July 20 |
| Average Last Frost Date | Jun. 21 - Jun. 30 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfc - Subarctic With Cool Summers And Year Around Rainfall |