Peck, Idaho has a Humid Continental Climate - Dry Warm Summer climate (Köppen classification: Dsa). Average annual temperatures range from 4.6 °C (low) to 17.8 °C (high). Annual precipitation averages 690.9 Millimeters. 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 | -2.1 °C | 4.4 °C | 77.98 mm |
| February | -1.4 °C | 7.9 °C | 67.06 mm |
| March | 0.6 °C | 12.8 °C | 76.45 mm |
| April | 3.6 °C | 17.5 °C | 71.88 mm |
| May | 7.3 °C | 22.5 °C | 62.23 mm |
| June | 10.6 °C | 26 °C | 51.05 mm |
| July | 12.8 °C | 32.5 °C | 18.03 mm |
| August | 12.6 °C | 32.7 °C | 17.02 mm |
| September | 8.8 °C | 26.9 °C | 25.65 mm |
| October | 4.1 °C | 17.4 °C | 55.37 mm |
| November | 0.6 °C | 8.8 °C | 87.38 mm |
| December | -2.3 °C | 3.8 °C | 80.77 mm |
| Annual | 4.6 °C | 17.8 °C | 690.87 mm |
| 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 : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsa - Humid Continental Climate - Dry Warm Summer |