Fernan Lake Village, Idaho has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 36.9 °F (low) to 58.3 °F (high). Annual precipitation averages 27 Inches. Fernan Lake Village 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 | 25.0 °F | 36.0 °F | 3.59 in. |
| February | 25.1 °F | 40.3 °F | 2.32 in. |
| March | 29.2 °F | 48.6 °F | 2.66 in. |
| April | 34.5 °F | 56.9 °F | 2.13 in. |
| May | 41.8 °F | 66.8 °F | 2.23 in. |
| June | 47.7 °F | 72.5 °F | 1.99 in. |
| July | 52.7 °F | 83.2 °F | 0.72 in. |
| August | 52.1 °F | 83.9 °F | 0.79 in. |
| September | 44.5 °F | 74.0 °F | 0.95 in. |
| October | 36.1 °F | 58.5 °F | 2.31 in. |
| November | 29.9 °F | 43.8 °F | 3.46 in. |
| December | 24.7 °F | 35.4 °F | 3.8 in. |
| Annual | 36.9 °F | 58.3 °F | 26.95 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |