Rollinsville, Colorado has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from 27.7 °F (low) to 53.3 °F (high). Annual precipitation averages 22.9 Inches. Rollinsville is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Aug. 21 - Aug. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.0 °F | 34.6 °F | 0.97 in. |
| February | 14.9 °F | 36.1 °F | 1.21 in. |
| March | 19.1 °F | 43.2 °F | 2.12 in. |
| April | 23.5 °F | 49.3 °F | 2.9 in. |
| May | 32.0 °F | 57.9 °F | 2.88 in. |
| June | 39.3 °F | 69.8 °F | 1.96 in. |
| July | 45.7 °F | 75.9 °F | 3.34 in. |
| August | 43.8 °F | 73.6 °F | 2.29 in. |
| September | 37.2 °F | 67.1 °F | 1.75 in. |
| October | 28.4 °F | 54.7 °F | 1.33 in. |
| November | 19.8 °F | 43.1 °F | 1.13 in. |
| December | 14.2 °F | 34.8 °F | 1.04 in. |
| Annual | 27.7 °F | 53.3 °F | 22.92 in. |
| Average First Frost Date | Aug. 21 - Aug. 31 |
| Average Last Frost Date | May 21 - May 31 |
| 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 | Extreme Drought |
| Köppen Climate Classification | Dfc - Subarctic With Cool Summers And Year Around Rainfall |