East Quincy, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 35.7 °F (low) to 67.7 °F (high). Annual precipitation averages 39 Inches. East Quincy is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 26.2 °F | 47.4 °F | 6.32 in. |
| February | 27.0 °F | 52.3 °F | 6.57 in. |
| March | 30.2 °F | 57.2 °F | 5.92 in. |
| April | 32.8 °F | 63.5 °F | 3.16 in. |
| May | 38.8 °F | 72.2 °F | 1.95 in. |
| June | 44.6 °F | 82.1 °F | 0.73 in. |
| July | 49.9 °F | 90.8 °F | 0.12 in. |
| August | 47.6 °F | 90.1 °F | 0.16 in. |
| September | 41.6 °F | 84.1 °F | 0.47 in. |
| October | 34.3 °F | 71.2 °F | 1.92 in. |
| November | 29.5 °F | 55.6 °F | 3.97 in. |
| December | 26.0 °F | 45.7 °F | 7.74 in. |
| Annual | 35.7 °F | 67.7 °F | 39.03 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |