Lexington Hills, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 47.7 °F (low) to 70.2 °F (high). Annual precipitation averages 41.7 Inches. Lexington Hills is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 41.8 °F | 57.8 °F | 9.03 in. |
| February | 42.6 °F | 59.6 °F | 9.2 in. |
| March | 43.7 °F | 63.4 °F | 5.53 in. |
| April | 45.1 °F | 65.8 °F | 2.73 in. |
| May | 48.1 °F | 71.5 °F | 1.08 in. |
| June | 51.0 °F | 78.5 °F | 0.2 in. |
| July | 54.6 °F | 84.0 °F | 0.01 in. |
| August | 54.4 °F | 84.2 °F | 0.03 in. |
| September | 54.1 °F | 82.0 °F | 0.13 in. |
| October | 50.0 °F | 74.0 °F | 1.64 in. |
| November | 45.2 °F | 64.2 °F | 3.63 in. |
| December | 41.5 °F | 57.2 °F | 8.49 in. |
| Annual | 47.7 °F | 70.2 °F | 41.7 in. |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 10b : 35°F to 30°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |