North Fork, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 8.2 °C (low) to 23.2 °C (high). Annual precipitation averages 840.5 Millimeters. North Fork is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.5 °C | 13.8 °C | 176.53 mm |
| February | 2 °C | 14.4 °C | 150.88 mm |
| March | 3.6 °C | 16.7 °C | 134.87 mm |
| April | 5.2 °C | 19.3 °C | 67.31 mm |
| May | 8.8 °C | 24.8 °C | 37.59 mm |
| June | 13.2 °C | 30.8 °C | 12.19 mm |
| July | 17.3 °C | 35.3 °C | 3.81 mm |
| August | 17.1 °C | 35.1 °C | 1.78 mm |
| September | 14.2 °C | 31.7 °C | 5.33 mm |
| October | 9.2 °C | 25.1 °C | 41.15 mm |
| November | 4.4 °C | 18 °C | 68.33 mm |
| December | 1.3 °C | 13.2 °C | 140.72 mm |
| Annual | 8.2 °C | 23.2 °C | 840.49 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |