Myers Flat, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 7 °C (low) to 20.2 °C (high). Annual precipitation averages 1373.1 Millimeters. Myers Flat is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.2 °C | 12.8 °C | 276.86 mm |
| February | 4.3 °C | 14.1 °C | 209.04 mm |
| March | 4.9 °C | 15.5 °C | 197.1 mm |
| April | 5.7 °C | 18.5 °C | 100.33 mm |
| May | 7.8 °C | 21.7 °C | 50.29 mm |
| June | 9.3 °C | 24.9 °C | 18.54 mm |
| July | 11 °C | 28.6 °C | 2.29 mm |
| August | 11 °C | 29.1 °C | 2.79 mm |
| September | 9.1 °C | 27.9 °C | 11.18 mm |
| October | 7.2 °C | 21.3 °C | 72.39 mm |
| November | 5.5 °C | 15.4 °C | 154.18 mm |
| December | 3.8 °C | 12.1 °C | 278.13 mm |
| Annual | 7 °C | 20.2 °C | 1373.12 mm |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |