Noxon, Montana has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 34.7 °F (low) to 58.2 °F (high). Annual precipitation averages 34.5 Inches. Noxon is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.9 °F | 34.4 °F | 4.48 in. |
| February | 23.5 °F | 39.7 °F | 3.13 in. |
| March | 27.4 °F | 48.3 °F | 3.58 in. |
| April | 32.3 °F | 58.0 °F | 2.61 in. |
| May | 39.3 °F | 68.2 °F | 2.55 in. |
| June | 45.4 °F | 74.0 °F | 2.47 in. |
| July | 49.2 °F | 84.6 °F | 1.03 in. |
| August | 48.1 °F | 84.7 °F | 0.96 in. |
| September | 41.6 °F | 73.7 °F | 1.51 in. |
| October | 34.7 °F | 57.2 °F | 3.08 in. |
| November | 28.9 °F | 41.8 °F | 4.46 in. |
| December | 23.2 °F | 33.8 °F | 4.64 in. |
| Annual | 34.7 °F | 58.2 °F | 34.5 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |