Beckwourth, California has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 32.2 °F (low) to 63.3 °F (high). Annual precipitation averages 20.3 Inches. Beckwourth is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.8 °F | 43.8 °F | 3.65 in. |
| February | 23.3 °F | 47.4 °F | 3.15 in. |
| March | 27.1 °F | 53.2 °F | 2.99 in. |
| April | 30.4 °F | 58.0 °F | 1.42 in. |
| May | 35.7 °F | 66.7 °F | 1.14 in. |
| June | 41.8 °F | 77.3 °F | 0.5 in. |
| July | 46.5 °F | 86.7 °F | 0.23 in. |
| August | 44.7 °F | 85.5 °F | 0.22 in. |
| September | 39.0 °F | 79.1 °F | 0.42 in. |
| October | 31.7 °F | 66.5 °F | 1.02 in. |
| November | 24.8 °F | 52.8 °F | 1.82 in. |
| December | 20.5 °F | 42.7 °F | 3.72 in. |
| Annual | 32.2 °F | 63.3 °F | 20.28 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |