Kendall, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 41.6 °F (low) to 58.2 °F (high). Annual precipitation averages 63.2 Inches. Kendall is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.7 °F | 42.0 °F | 8.5 in. |
| February | 32.8 °F | 45.9 °F | 5.03 in. |
| March | 35.2 °F | 50.8 °F | 6.54 in. |
| April | 39.3 °F | 57.3 °F | 4.67 in. |
| May | 44.9 °F | 64.5 °F | 3.92 in. |
| June | 49.9 °F | 68.9 °F | 3.11 in. |
| July | 53.3 °F | 75.5 °F | 1.88 in. |
| August | 53.3 °F | 76.6 °F | 1.88 in. |
| September | 48.4 °F | 69.7 °F | 3.46 in. |
| October | 42.4 °F | 58.4 °F | 6.62 in. |
| November | 36.2 °F | 47.7 °F | 9.68 in. |
| December | 31.7 °F | 41.4 °F | 7.86 in. |
| Annual | 41.6 °F | 58.2 °F | 63.15 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |