Genesee, Idaho has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 3.2 °C (low) to 14.8 °C (high). Annual precipitation averages 647.9 Millimeters. Genesee is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.3 °C | 3.2 °C | 79.76 mm |
| February | -2.7 °C | 5.5 °C | 58.67 mm |
| March | -0.6 °C | 9.3 °C | 70.1 mm |
| April | 2.1 °C | 13.4 °C | 67.56 mm |
| May | 5.8 °C | 18.6 °C | 61.47 mm |
| June | 8.6 °C | 22 °C | 40.13 mm |
| July | 11.1 °C | 28.5 °C | 17.02 mm |
| August | 11 °C | 28.9 °C | 17.02 mm |
| September | 7.6 °C | 23.6 °C | 21.59 mm |
| October | 3.3 °C | 15.2 °C | 53.59 mm |
| November | -0.8 °C | 7.1 °C | 75.69 mm |
| December | -3.7 °C | 2.5 °C | 85.34 mm |
| Annual | 3.2 °C | 14.8 °C | 647.94 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |