Kent, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 7.5 °C (low) to 16.3 °C (high). Annual precipitation averages 1062 Millimeters. Kent is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.6 °C | 8.7 °C | 155.19 mm |
| February | 2.6 °C | 10.2 °C | 101.6 mm |
| March | 4.1 °C | 12.4 °C | 118.11 mm |
| April | 6 °C | 15.4 °C | 87.38 mm |
| May | 9 °C | 19.1 °C | 49.02 mm |
| June | 11.6 °C | 21.4 °C | 46.74 mm |
| July | 13.6 °C | 24.9 °C | 23.11 mm |
| August | 13.7 °C | 25.3 °C | 24.13 mm |
| September | 11.4 °C | 22 °C | 41.91 mm |
| October | 7.8 °C | 16.1 °C | 103.38 mm |
| November | 4.6 °C | 11.3 °C | 160.53 mm |
| December | 2.4 °C | 8.3 °C | 150.88 mm |
| Annual | 7.5 °C | 16.3 °C | 1061.98 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |