Tupman, California has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 49.7 °F (low) to 77.6 °F (high). Annual precipitation averages 6.5 Inches. Tupman 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 | 36.9 °F | 57.2 °F | 1.25 in. |
| February | 40.2 °F | 63.8 °F | 1.22 in. |
| March | 44.1 °F | 69.7 °F | 1.24 in. |
| April | 47.2 °F | 75.3 °F | 0.52 in. |
| May | 54.5 °F | 83.6 °F | 0.27 in. |
| June | 59.9 °F | 91.5 °F | 0.05 in. |
| July | 65.5 °F | 97.1 °F | 0.02 in. |
| August | 63.9 °F | 96.1 °F | 0.0 in. |
| September | 58.9 °F | 91.1 °F | 0.04 in. |
| October | 49.7 °F | 80.7 °F | 0.27 in. |
| November | 40.7 °F | 66.9 °F | 0.52 in. |
| December | 35.3 °F | 57.6 °F | 1.05 in. |
| Annual | 49.7 °F | 77.6 °F | 6.45 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 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BWk - Cold Desert Climate |