Hope, Idaho has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 33.8 °F (low) to 55.7 °F (high). Annual precipitation averages 28.5 Inches. Hope is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.0 °F | 33.3 °F | 3.53 in. |
| February | 22.3 °F | 37.9 °F | 2.15 in. |
| March | 26.5 °F | 46.3 °F | 2.6 in. |
| April | 31.4 °F | 55.0 °F | 1.87 in. |
| May | 38.5 °F | 65.2 °F | 2.59 in. |
| June | 44.4 °F | 70.9 °F | 2.63 in. |
| July | 48.3 °F | 81.1 °F | 0.84 in. |
| August | 47.7 °F | 81.4 °F | 0.67 in. |
| September | 40.8 °F | 70.6 °F | 1.44 in. |
| October | 33.6 °F | 54.7 °F | 2.74 in. |
| November | 27.7 °F | 39.9 °F | 3.28 in. |
| December | 22.1 °F | 31.9 °F | 4.13 in. |
| Annual | 33.8 °F | 55.7 °F | 28.47 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |