Elk Grove, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 9.2 °C (low) to 23.4 °C (high). Annual precipitation averages 474.5 Millimeters. Elk Grove 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 Jan. 1 - Jan. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.9 °C | 13.1 °C | 94.23 mm |
| February | 5.1 °C | 15.9 °C | 96.27 mm |
| March | 6.7 °C | 18.8 °C | 68.58 mm |
| April | 8.1 °C | 21.8 °C | 36.07 mm |
| May | 10.9 °C | 26.2 °C | 20.32 mm |
| June | 13.4 °C | 30.3 °C | 4.32 mm |
| July | 14.9 °C | 33.2 °C | 0 mm |
| August | 14.6 °C | 32.8 °C | 0.76 mm |
| September | 13.3 °C | 31 °C | 2.79 mm |
| October | 9.9 °C | 25.6 °C | 21.34 mm |
| November | 5.8 °C | 18.2 °C | 42.93 mm |
| December | 3.6 °C | 13.3 °C | 86.87 mm |
| Annual | 9.2 °C | 23.4 °C | 474.48 mm |
| Average First Frost Date | Jan. 1 - Jan. 10 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |