Waukena, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 9.7 °C (low) to 25.1 °C (high). Annual precipitation averages 204.5 Millimeters. 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 | 2.9 °C | 13.3 °C | 42.93 mm |
| February | 4.5 °C | 16.7 °C | 36.83 mm |
| March | 6.3 °C | 20.2 °C | 36.07 mm |
| April | 8.3 °C | 23.9 °C | 16.51 mm |
| May | 12 °C | 28.8 °C | 8.13 mm |
| June | 15.1 °C | 33.3 °C | 1.78 mm |
| July | 18.1 °C | 36.4 °C | 0 mm |
| August | 17.1 °C | 35.6 °C | 0.25 mm |
| September | 14.7 °C | 32.9 °C | 1.27 mm |
| October | 10.1 °C | 27 °C | 10.92 mm |
| November | 5 °C | 19.2 °C | 17.02 mm |
| December | 2.1 °C | 13.5 °C | 32.77 mm |
| Annual | 9.7 °C | 25.1 °C | 204.48 mm |
| 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 : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |