Battle Ground, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 42.7 °F (low) to 62 °F (high). Annual precipitation averages 52.1 Inches. Battle Ground is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.1 °F | 46.0 °F | 7.19 in. |
| February | 34.1 °F | 50.1 °F | 5.28 in. |
| March | 36.9 °F | 55.0 °F | 5.58 in. |
| April | 40.2 °F | 59.9 °F | 4.49 in. |
| May | 45.7 °F | 66.9 °F | 3.29 in. |
| June | 49.8 °F | 71.5 °F | 2.3 in. |
| July | 53.7 °F | 79.1 °F | 0.63 in. |
| August | 53.6 °F | 80.2 °F | 0.78 in. |
| September | 49.2 °F | 74.7 °F | 2.18 in. |
| October | 42.9 °F | 63.0 °F | 4.79 in. |
| November | 37.8 °F | 52.1 °F | 7.6 in. |
| December | 33.9 °F | 45.3 °F | 7.96 in. |
| Annual | 42.7 °F | 62 °F | 52.07 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |