West Park, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 9.9 °C (low) to 24.8 °C (high). Annual precipitation averages 285.5 Millimeters. West Park is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.4 °C | 13.3 °C | 62.74 mm |
| February | 4.8 °C | 16.6 °C | 51.31 mm |
| March | 6.6 °C | 20 °C | 47.75 mm |
| April | 8.4 °C | 23.4 °C | 24.38 mm |
| May | 12 °C | 28.1 °C | 11.94 mm |
| June | 15 °C | 32.8 °C | 2.79 mm |
| July | 18.1 °C | 36.2 °C | 1.02 mm |
| August | 17.3 °C | 35.8 °C | 0 mm |
| September | 14.8 °C | 32.7 °C | 3.05 mm |
| October | 10.4 °C | 26.7 °C | 11.43 mm |
| November | 5.6 °C | 18.9 °C | 23.11 mm |
| December | 2.7 °C | 13.4 °C | 45.97 mm |
| Annual | 9.9 °C | 24.8 °C | 285.49 mm |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |