Waukena, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 49.4 °F (low) to 77.1 °F (high). Annual precipitation averages 8.1 Inches. Waukena is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.3 °F | 55.9 °F | 1.69 in. |
| February | 40.1 °F | 62.1 °F | 1.45 in. |
| March | 43.4 °F | 68.4 °F | 1.42 in. |
| April | 46.9 °F | 75.1 °F | 0.65 in. |
| May | 53.6 °F | 83.9 °F | 0.32 in. |
| June | 59.2 °F | 92.0 °F | 0.07 in. |
| July | 64.5 °F | 97.5 °F | 0.0 in. |
| August | 62.8 °F | 96.0 °F | 0.01 in. |
| September | 58.5 °F | 91.2 °F | 0.05 in. |
| October | 50.1 °F | 80.6 °F | 0.43 in. |
| November | 41.0 °F | 66.5 °F | 0.67 in. |
| December | 35.7 °F | 56.3 °F | 1.29 in. |
| Annual | 49.4 °F | 77.1 °F | 8.05 in. |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |