Lowman, Idaho has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 31 °F (low) to 60.7 °F (high). Annual precipitation averages 26.1 Inches. Lowman is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.6 °F | 35.2 °F | 3.78 in. |
| February | 18.8 °F | 41.6 °F | 2.66 in. |
| March | 24.9 °F | 50.6 °F | 2.68 in. |
| April | 30.0 °F | 59.1 °F | 2.25 in. |
| May | 37.0 °F | 69.0 °F | 2.14 in. |
| June | 41.9 °F | 76.4 °F | 1.49 in. |
| July | 47.2 °F | 88.3 °F | 0.47 in. |
| August | 45.8 °F | 87.3 °F | 0.52 in. |
| September | 38.8 °F | 78.3 °F | 0.82 in. |
| October | 30.2 °F | 63.0 °F | 1.83 in. |
| November | 23.9 °F | 44.7 °F | 2.99 in. |
| December | 16.7 °F | 34.8 °F | 4.46 in. |
| Annual | 31 °F | 60.7 °F | 26.09 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |