Kooskia, Idaho has a Humid Continental Climate - Dry Warm Summer climate (Köppen classification: Dsa). Average annual temperatures range from 38.7 °F (low) to 63.1 °F (high). Annual precipitation averages 24.1 Inches. Kooskia is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.2 °F | 38.9 °F | 1.86 in. |
| February | 28.4 °F | 45.3 °F | 1.46 in. |
| March | 31.8 °F | 54.2 °F | 2.75 in. |
| April | 36.7 °F | 62.5 °F | 2.85 in. |
| May | 43.3 °F | 71.5 °F | 3.03 in. |
| June | 49.0 °F | 78.2 °F | 2.53 in. |
| July | 53.6 °F | 89.8 °F | 0.9 in. |
| August | 52.6 °F | 90.5 °F | 0.81 in. |
| September | 46.0 °F | 79.6 °F | 1.12 in. |
| October | 37.7 °F | 62.7 °F | 2.12 in. |
| November | 31.5 °F | 46.6 °F | 2.6 in. |
| December | 26.6 °F | 37.9 °F | 2.06 in. |
| Annual | 38.7 °F | 63.1 °F | 24.09 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dsa - Humid Continental Climate - Dry Warm Summer |