Dalton Gardens, Idaho has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 36.4 °F (low) to 57.9 °F (high). Annual precipitation averages 26.1 Inches. 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 | 24.5 °F | 35.8 °F | 3.52 in. |
| February | 24.5 °F | 39.9 °F | 2.22 in. |
| March | 28.7 °F | 48.1 °F | 2.63 in. |
| April | 33.9 °F | 56.4 °F | 2.11 in. |
| May | 41.2 °F | 66.3 °F | 2.16 in. |
| June | 47.1 °F | 72.1 °F | 1.91 in. |
| July | 52.0 °F | 82.8 °F | 0.7 in. |
| August | 51.4 °F | 83.4 °F | 0.75 in. |
| September | 43.8 °F | 73.4 °F | 0.87 in. |
| October | 35.5 °F | 58.0 °F | 2.28 in. |
| November | 29.4 °F | 43.5 °F | 3.35 in. |
| December | 24.2 °F | 35.0 °F | 3.64 in. |
| Annual | 36.4 °F | 57.9 °F | 26.14 in. |
| 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 : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |