Puyallup, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 43.7 °F (low) to 61.7 °F (high). Annual precipitation averages 41.8 Inches. Puyallup is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 35.4 °F | 47.8 °F | 5.89 in. |
| February | 35.2 °F | 50.5 °F | 3.91 in. |
| March | 37.7 °F | 54.7 °F | 4.5 in. |
| April | 41.1 °F | 59.8 °F | 3.56 in. |
| May | 46.7 °F | 66.8 °F | 2.22 in. |
| June | 51.4 °F | 71.3 °F | 1.85 in. |
| July | 54.7 °F | 77.9 °F | 0.77 in. |
| August | 54.7 °F | 78.2 °F | 1.11 in. |
| September | 50.3 °F | 72.4 °F | 1.49 in. |
| October | 44.2 °F | 61.3 °F | 3.97 in. |
| November | 38.6 °F | 52.5 °F | 6.36 in. |
| December | 34.9 °F | 46.9 °F | 6.19 in. |
| Annual | 43.7 °F | 61.7 °F | 41.82 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| 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 | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |