Peck, Idaho has a Humid Continental Climate - Dry Warm Summer climate (Köppen classification: Dsa). Average annual temperatures range from 40.3 °F (low) to 64 °F (high). Annual precipitation averages 27.2 Inches. Peck 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.2 °F | 40.0 °F | 3.07 in. |
| February | 29.4 °F | 46.2 °F | 2.64 in. |
| March | 33.1 °F | 55.0 °F | 3.01 in. |
| April | 38.4 °F | 63.5 °F | 2.83 in. |
| May | 45.2 °F | 72.5 °F | 2.45 in. |
| June | 51.0 °F | 78.8 °F | 2.01 in. |
| July | 55.1 °F | 90.5 °F | 0.71 in. |
| August | 54.7 °F | 90.9 °F | 0.67 in. |
| September | 47.9 °F | 80.4 °F | 1.01 in. |
| October | 39.4 °F | 63.4 °F | 2.18 in. |
| November | 33.1 °F | 47.8 °F | 3.44 in. |
| December | 27.9 °F | 38.9 °F | 3.18 in. |
| Annual | 40.3 °F | 64 °F | 27.2 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 | Severe Drought |
| Köppen Climate Classification | Dsa - Humid Continental Climate - Dry Warm Summer |