North Tustin, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 53.7 °F (low) to 75.6 °F (high). Annual precipitation averages 13.6 Inches. North Tustin is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 45.9 °F | 68.0 °F | 2.94 in. |
| February | 46.6 °F | 68.1 °F | 3.49 in. |
| March | 48.9 °F | 69.9 °F | 2.06 in. |
| April | 51.0 °F | 73.2 °F | 0.78 in. |
| May | 55.4 °F | 74.8 °F | 0.31 in. |
| June | 58.9 °F | 78.4 °F | 0.1 in. |
| July | 62.4 °F | 83.5 °F | 0.07 in. |
| August | 63.0 °F | 85.5 °F | 0.01 in. |
| September | 61.3 °F | 84.9 °F | 0.14 in. |
| October | 56.5 °F | 80.2 °F | 0.48 in. |
| November | 49.8 °F | 73.5 °F | 0.9 in. |
| December | 45.2 °F | 67.6 °F | 2.28 in. |
| Annual | 53.7 °F | 75.6 °F | 13.56 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 10a : 30°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |