East Nicolaus, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 48.4 °F (low) to 74.3 °F (high). Annual precipitation averages 19.9 Inches. East Nicolaus is located in USDA Plant Hardiness Zone 9b. 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 | 38.5 °F | 55.4 °F | 4.02 in. |
| February | 40.7 °F | 60.8 °F | 3.61 in. |
| March | 43.3 °F | 65.9 °F | 2.9 in. |
| April | 45.9 °F | 71.4 °F | 1.41 in. |
| May | 51.8 °F | 79.6 °F | 0.85 in. |
| June | 57.0 °F | 87.4 °F | 0.19 in. |
| July | 59.9 °F | 92.8 °F | 0.0 in. |
| August | 58.8 °F | 92.0 °F | 0.05 in. |
| September | 55.8 °F | 88.0 °F | 0.13 in. |
| October | 49.0 °F | 78.1 °F | 0.87 in. |
| November | 41.6 °F | 64.6 °F | 2.08 in. |
| December | 37.9 °F | 55.7 °F | 3.75 in. |
| Annual | 48.4 °F | 74.3 °F | 19.86 in. |
| 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 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |