Nipinnawasee, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 8.4 °C (low) to 22.8 °C (high). Annual precipitation averages 853.2 Millimeters. Nipinnawasee is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.1 °C | 13.2 °C | 189.74 mm |
| February | 2.5 °C | 13.7 °C | 164.34 mm |
| March | 3.9 °C | 16.1 °C | 123.7 mm |
| April | 5.4 °C | 19.1 °C | 72.64 mm |
| May | 9.1 °C | 24.6 °C | 40.64 mm |
| June | 13.2 °C | 30.5 °C | 11.43 mm |
| July | 17.3 °C | 34.9 °C | 2.54 mm |
| August | 16.9 °C | 35.1 °C | 4.32 mm |
| September | 14.2 °C | 31.4 °C | 4.83 mm |
| October | 9.4 °C | 24.9 °C | 34.04 mm |
| November | 4.9 °C | 17.5 °C | 70.87 mm |
| December | 1.8 °C | 12.7 °C | 134.11 mm |
| Annual | 8.4 °C | 22.8 °C | 853.2 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |