Robbins, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 48.3 °F (low) to 74.3 °F (high). Annual precipitation averages 20.1 Inches. Robbins is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 38.8 °F | 55.0 °F | 4.12 in. |
| February | 41.0 °F | 60.5 °F | 3.87 in. |
| March | 43.5 °F | 65.8 °F | 2.9 in. |
| April | 46.0 °F | 71.6 °F | 1.37 in. |
| May | 51.7 °F | 80.0 °F | 0.79 in. |
| June | 56.6 °F | 87.5 °F | 0.2 in. |
| July | 59.1 °F | 92.8 °F | 0.0 in. |
| August | 58.0 °F | 92.0 °F | 0.05 in. |
| September | 55.4 °F | 88.4 °F | 0.12 in. |
| October | 49.3 °F | 78.5 °F | 0.86 in. |
| November | 41.9 °F | 64.4 °F | 2.02 in. |
| December | 38.1 °F | 55.3 °F | 3.78 in. |
| Annual | 48.3 °F | 74.3 °F | 20.08 in. |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | 10-20 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 |