Genesee, Colorado has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.5 °C (low) to 14.2 °C (high). Annual precipitation averages 554.2 Millimeters. Genesee 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 Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.5 °C | 4.9 °C | 22.61 mm |
| February | -7.1 °C | 4.9 °C | 28.96 mm |
| March | -3.9 °C | 8.9 °C | 56.39 mm |
| April | -1.3 °C | 11.6 °C | 74.68 mm |
| May | 3.4 °C | 16.3 °C | 76.71 mm |
| June | 9.1 °C | 22.9 °C | 45.21 mm |
| July | 12.4 °C | 26.3 °C | 55.63 mm |
| August | 11.8 °C | 25.2 °C | 56.64 mm |
| September | 7.8 °C | 21.2 °C | 48.51 mm |
| October | 1.8 °C | 14.6 °C | 37.59 mm |
| November | -3 °C | 8.8 °C | 28.19 mm |
| December | -6.7 °C | 4.8 °C | 23.11 mm |
| Annual | 1.5 °C | 14.2 °C | 554.23 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| 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 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |