Littlerock, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 8.6 °C (low) to 24.7 °C (high). Annual precipitation averages 176.8 Millimeters. Littlerock is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.3 °C | 14.9 °C | 33.78 mm |
| February | 2.3 °C | 16.3 °C | 45.47 mm |
| March | 4.3 °C | 19.5 °C | 25.4 mm |
| April | 6.4 °C | 22.4 °C | 9.4 mm |
| May | 10.3 °C | 27 °C | 3.81 mm |
| June | 14.4 °C | 32.3 °C | 2.03 mm |
| July | 18.1 °C | 35.7 °C | 3.3 mm |
| August | 17.5 °C | 35.8 °C | 1.27 mm |
| September | 14.4 °C | 32.4 °C | 4.06 mm |
| October | 9.2 °C | 26.3 °C | 7.62 mm |
| November | 4 °C | 19.4 °C | 9.65 mm |
| December | 0.7 °C | 14.2 °C | 30.99 mm |
| Annual | 8.6 °C | 24.7 °C | 176.78 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |