Asher, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.6 °C (low) to 22.7 °C (high). Annual precipitation averages 1010.7 Millimeters. Asher is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.6 °C | 10.6 °C | 42.16 mm |
| February | -0.5 °C | 12.9 °C | 50.29 mm |
| March | 4.3 °C | 17.9 °C | 76.96 mm |
| April | 8.8 °C | 22.6 °C | 100.08 mm |
| May | 14.4 °C | 26.3 °C | 134.37 mm |
| June | 19.4 °C | 30.9 °C | 124.71 mm |
| July | 21.6 °C | 33.9 °C | 89.66 mm |
| August | 20.9 °C | 34 °C | 75.44 mm |
| September | 16.3 °C | 29.9 °C | 102.36 mm |
| October | 9.8 °C | 23.8 °C | 92.71 mm |
| November | 3.9 °C | 17.4 °C | 63.25 mm |
| December | -1.1 °C | 11.6 °C | 58.67 mm |
| Annual | 9.6 °C | 22.7 °C | 1010.66 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |