Methow, Washington has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 37.2 °F (low) to 61 °F (high). Annual precipitation averages 13.6 Inches. Methow is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.5 °F | 32.6 °F | 1.82 in. |
| February | 23.4 °F | 39.9 °F | 1.11 in. |
| March | 29.6 °F | 52.0 °F | 1.5 in. |
| April | 36.0 °F | 62.7 °F | 0.94 in. |
| May | 43.5 °F | 72.3 °F | 1.05 in. |
| June | 49.9 °F | 78.9 °F | 1.08 in. |
| July | 55.6 °F | 88.8 °F | 0.6 in. |
| August | 54.8 °F | 88.3 °F | 0.4 in. |
| September | 46.6 °F | 78.6 °F | 0.32 in. |
| October | 36.5 °F | 61.7 °F | 1.09 in. |
| November | 28.3 °F | 44.0 °F | 1.7 in. |
| December | 21.3 °F | 32.7 °F | 1.99 in. |
| Annual | 37.2 °F | 61 °F | 13.6 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 125-150 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 | Moderate Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |