Dalton Gardens, Idaho has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 2.4 °C (low) to 14.4 °C (high). Annual precipitation averages 664 Millimeters. Dalton Gardens is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.2 °C | 2.1 °C | 89.41 mm |
| February | -4.2 °C | 4.4 °C | 56.39 mm |
| March | -1.8 °C | 8.9 °C | 66.8 mm |
| April | 1.1 °C | 13.6 °C | 53.59 mm |
| May | 5.1 °C | 19.1 °C | 54.86 mm |
| June | 8.4 °C | 22.3 °C | 48.51 mm |
| July | 11.1 °C | 28.2 °C | 17.78 mm |
| August | 10.8 °C | 28.6 °C | 19.05 mm |
| September | 6.6 °C | 23 °C | 22.1 mm |
| October | 1.9 °C | 14.4 °C | 57.91 mm |
| November | -1.4 °C | 6.4 °C | 85.09 mm |
| December | -4.3 °C | 1.7 °C | 92.46 mm |
| Annual | 2.4 °C | 14.4 °C | 663.95 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |