Boley, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.5 °C (low) to 22.5 °C (high). Annual precipitation averages 1045.5 Millimeters. Boley 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 | 10.3 °C | 43.94 mm |
| February | -0.7 °C | 12.6 °C | 48.51 mm |
| March | 4.2 °C | 17.6 °C | 76.45 mm |
| April | 8.8 °C | 22.4 °C | 105.16 mm |
| May | 14.3 °C | 26.3 °C | 142.49 mm |
| June | 19.3 °C | 31 °C | 129.54 mm |
| July | 21.3 °C | 34.1 °C | 92.46 mm |
| August | 20.6 °C | 34 °C | 80.01 mm |
| September | 16.2 °C | 29.7 °C | 102.36 mm |
| October | 9.7 °C | 23.7 °C | 100.08 mm |
| November | 3.8 °C | 17.1 °C | 68.07 mm |
| December | -1.1 °C | 11.2 °C | 56.39 mm |
| Annual | 9.5 °C | 22.5 °C | 1045.46 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 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |