Camas, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 45 °F (low) to 63 °F (high). Annual precipitation averages 52.5 Inches. Camas is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 36.0 °F | 46.1 °F | 7.11 in. |
| February | 36.6 °F | 50.2 °F | 4.93 in. |
| March | 38.9 °F | 55.7 °F | 5.9 in. |
| April | 42.5 °F | 61.2 °F | 4.43 in. |
| May | 47.9 °F | 68.3 °F | 3.53 in. |
| June | 52.1 °F | 73.2 °F | 2.79 in. |
| July | 56.0 °F | 81.1 °F | 0.81 in. |
| August | 56.1 °F | 81.8 °F | 0.64 in. |
| September | 51.9 °F | 75.6 °F | 2.12 in. |
| October | 45.8 °F | 63.9 °F | 4.92 in. |
| November | 40.3 °F | 52.6 °F | 7.6 in. |
| December | 35.9 °F | 45.7 °F | 7.73 in. |
| Annual | 45 °F | 63 °F | 52.51 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°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 |