McKittrick, California has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 10.4 °C (low) to 25.3 °C (high). Annual precipitation averages 176.5 Millimeters. 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 | 3.4 °C | 14.4 °C | 34.54 mm |
| February | 5 °C | 16.9 °C | 34.29 mm |
| March | 6.9 °C | 20.1 °C | 32.77 mm |
| April | 8.5 °C | 24.1 °C | 12.19 mm |
| May | 12 °C | 28.6 °C | 8.38 mm |
| June | 15.5 °C | 33.3 °C | 1.78 mm |
| July | 19.1 °C | 36.6 °C | 0.51 mm |
| August | 18.4 °C | 35.9 °C | 0.51 mm |
| September | 15.7 °C | 32.9 °C | 1.27 mm |
| October | 11.2 °C | 26.6 °C | 8.13 mm |
| November | 6.2 °C | 19.3 °C | 13.97 mm |
| December | 3.1 °C | 14.4 °C | 28.19 mm |
| Annual | 10.4 °C | 25.3 °C | 176.53 mm |
| 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 : -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 | BWk - Cold Desert Climate |