Prattville, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 1.5 °C (low) to 16.9 °C (high). Annual precipitation averages 920.5 Millimeters. Prattville is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.6 °C | 6.4 °C | 140.97 mm |
| February | -4.3 °C | 8.2 °C | 152.4 mm |
| March | -2.3 °C | 10.9 °C | 129.54 mm |
| April | -0.4 °C | 13.9 °C | 72.9 mm |
| May | 3.2 °C | 19.3 °C | 46.74 mm |
| June | 6.7 °C | 24.9 °C | 19.3 mm |
| July | 9.6 °C | 29.7 °C | 10.67 mm |
| August | 8.8 °C | 29.2 °C | 9.65 mm |
| September | 5.7 °C | 25.8 °C | 11.94 mm |
| October | 1.5 °C | 18.6 °C | 46.99 mm |
| November | -1.9 °C | 10.5 °C | 102.36 mm |
| December | -4.6 °C | 5.8 °C | 177.04 mm |
| Annual | 1.5 °C | 16.9 °C | 920.5 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |