Littlefield, Arizona has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 11.4 °C (low) to 28.1 °C (high). Annual precipitation averages 188.5 Millimeters. Littlefield is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.1 °C | 15.6 °C | 20.32 mm |
| February | 3 °C | 18.1 °C | 31.75 mm |
| March | 6.4 °C | 22.6 °C | 21.08 mm |
| April | 9.7 °C | 26.7 °C | 12.95 mm |
| May | 14.7 °C | 32.4 °C | 6.1 mm |
| June | 19.4 °C | 38.5 °C | 3.05 mm |
| July | 23.9 °C | 41.4 °C | 10.92 mm |
| August | 23.5 °C | 40.6 °C | 14.48 mm |
| September | 18.4 °C | 36.6 °C | 11.18 mm |
| October | 11.6 °C | 29.1 °C | 18.8 mm |
| November | 4.8 °C | 20.8 °C | 14.73 mm |
| December | 0.8 °C | 14.6 °C | 23.11 mm |
| Annual | 11.4 °C | 28.1 °C | 188.47 mm |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BWk - Cold Desert Climate |