Whitley Gardens, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 43.6 °F (low) to 76.8 °F (high). Annual precipitation averages 14.9 Inches. Whitley Gardens is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 35.3 °F | 61.5 °F | 3.38 in. |
| February | 37.2 °F | 63.4 °F | 3.16 in. |
| March | 39.5 °F | 67.3 °F | 2.65 in. |
| April | 41.0 °F | 73.2 °F | 0.93 in. |
| May | 45.5 °F | 80.3 °F | 0.36 in. |
| June | 49.9 °F | 88.3 °F | 0.05 in. |
| July | 54.1 °F | 92.8 °F | 0.04 in. |
| August | 53.7 °F | 93.8 °F | 0.0 in. |
| September | 50.6 °F | 90.4 °F | 0.07 in. |
| October | 44.7 °F | 80.7 °F | 0.61 in. |
| November | 38.1 °F | 69.2 °F | 1.1 in. |
| December | 34.1 °F | 61.1 °F | 2.52 in. |
| Annual | 43.6 °F | 76.8 °F | 14.87 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 40-50 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 |