McKittrick, California has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 50.8 °F (low) to 77.5 °F (high). Annual precipitation averages 7 Inches. McKittrick 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. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 38.2 °F | 58.0 °F | 1.36 in. |
| February | 41.0 °F | 62.4 °F | 1.35 in. |
| March | 44.5 °F | 68.1 °F | 1.29 in. |
| April | 47.3 °F | 75.3 °F | 0.48 in. |
| May | 53.6 °F | 83.5 °F | 0.33 in. |
| June | 59.9 °F | 91.9 °F | 0.07 in. |
| July | 66.4 °F | 97.9 °F | 0.02 in. |
| August | 65.1 °F | 96.6 °F | 0.02 in. |
| September | 60.3 °F | 91.2 °F | 0.05 in. |
| October | 52.2 °F | 79.8 °F | 0.32 in. |
| November | 43.2 °F | 66.7 °F | 0.55 in. |
| December | 37.6 °F | 58.0 °F | 1.11 in. |
| Annual | 50.8 °F | 77.5 °F | 6.95 in. |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BWk - Cold Desert Climate |