Centerville, Washington has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 38.9 °F (low) to 61.4 °F (high). Annual precipitation averages 15.3 Inches. Centerville is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.6 °F | 39.5 °F | 2.45 in. |
| February | 29.0 °F | 44.7 °F | 1.75 in. |
| March | 32.5 °F | 52.1 °F | 1.47 in. |
| April | 36.4 °F | 59.3 °F | 0.98 in. |
| May | 42.7 °F | 68.6 °F | 0.95 in. |
| June | 47.7 °F | 75.3 °F | 0.52 in. |
| July | 53.2 °F | 85.4 °F | 0.18 in. |
| August | 52.7 °F | 85.6 °F | 0.23 in. |
| September | 47.0 °F | 77.1 °F | 0.37 in. |
| October | 38.6 °F | 62.4 °F | 1.25 in. |
| November | 32.3 °F | 47.6 °F | 2.18 in. |
| December | 27.5 °F | 38.9 °F | 2.95 in. |
| Annual | 38.9 °F | 61.4 °F | 15.28 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |