Allensworth, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 9.2 °C (low) to 24.9 °C (high). Annual precipitation averages 193.8 Millimeters. Allensworth is located in USDA Plant Hardiness Zone 9a. 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 | 2.1 °C | 13.3 °C | 39.88 mm |
| February | 3.6 °C | 16.7 °C | 35.05 mm |
| March | 5.7 °C | 20.2 °C | 32.51 mm |
| April | 7.8 °C | 23.3 °C | 15.49 mm |
| May | 11.6 °C | 28.3 °C | 7.62 mm |
| June | 14.9 °C | 32.8 °C | 1.78 mm |
| July | 18.1 °C | 35.9 °C | 0.25 mm |
| August | 16.9 °C | 35.5 °C | 0.51 mm |
| September | 14.3 °C | 32.9 °C | 1.27 mm |
| October | 9.4 °C | 27.1 °C | 10.16 mm |
| November | 4.2 °C | 19.2 °C | 16.26 mm |
| December | 1.2 °C | 13.6 °C | 33.02 mm |
| Annual | 9.2 °C | 24.9 °C | 193.8 mm |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |