Coeur d'Alene, Idaho has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 37.1 °F (low) to 58.4 °F (high). Annual precipitation averages 25 Inches. Coeur d'Alene 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 | 25.1 °F | 36.1 °F | 3.36 in. |
| February | 25.2 °F | 40.4 °F | 2.19 in. |
| March | 29.4 °F | 48.6 °F | 2.38 in. |
| April | 34.6 °F | 57.0 °F | 1.98 in. |
| May | 42.1 °F | 66.9 °F | 2.14 in. |
| June | 48.0 °F | 72.6 °F | 1.92 in. |
| July | 53.1 °F | 83.3 °F | 0.67 in. |
| August | 52.4 °F | 84.0 °F | 0.7 in. |
| September | 44.7 °F | 74.0 °F | 0.87 in. |
| October | 36.3 °F | 58.6 °F | 2.03 in. |
| November | 30.0 °F | 43.9 °F | 3.3 in. |
| December | 24.8 °F | 35.4 °F | 3.5 in. |
| Annual | 37.1 °F | 58.4 °F | 25.04 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 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |