La Center, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 43.9 °F (low) to 62.9 °F (high). Annual precipitation averages 46.7 Inches. La Center 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 | 35.4 °F | 46.6 °F | 6.68 in. |
| February | 35.3 °F | 50.6 °F | 4.87 in. |
| March | 38.2 °F | 55.5 °F | 5.1 in. |
| April | 41.5 °F | 60.9 °F | 4.02 in. |
| May | 47.0 °F | 68.4 °F | 2.79 in. |
| June | 50.9 °F | 72.7 °F | 1.99 in. |
| July | 54.8 °F | 80.2 °F | 0.52 in. |
| August | 54.7 °F | 81.4 °F | 0.7 in. |
| September | 50.7 °F | 75.8 °F | 1.87 in. |
| October | 44.3 °F | 63.6 °F | 4.37 in. |
| November | 39.1 °F | 52.6 °F | 6.52 in. |
| December | 35.2 °F | 45.9 °F | 7.3 in. |
| Annual | 43.9 °F | 62.9 °F | 46.73 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 |