Cherry Grove, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 42.9 °F (low) to 62.1 °F (high). Annual precipitation averages 48.9 Inches. Cherry Grove is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.3 °F | 46.2 °F | 6.81 in. |
| February | 34.4 °F | 50.2 °F | 5.04 in. |
| March | 37.1 °F | 55.1 °F | 5.25 in. |
| April | 40.4 °F | 59.9 °F | 4.19 in. |
| May | 46.0 °F | 67.0 °F | 3.09 in. |
| June | 49.9 °F | 71.6 °F | 2.16 in. |
| July | 53.9 °F | 79.1 °F | 0.58 in. |
| August | 53.8 °F | 80.3 °F | 0.73 in. |
| September | 49.5 °F | 74.7 °F | 2.07 in. |
| October | 43.1 °F | 63.1 °F | 4.51 in. |
| November | 38.0 °F | 52.3 °F | 7.02 in. |
| December | 34.1 °F | 45.4 °F | 7.48 in. |
| Annual | 42.9 °F | 62.1 °F | 48.93 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |