Sayre, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.3 °C (low) to 23.2 °C (high). Annual precipitation averages 671.6 Millimeters. Sayre is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.9 °C | 10.7 °C | 21.08 mm |
| February | -2.2 °C | 12.9 °C | 23.37 mm |
| March | 2.6 °C | 18 °C | 44.7 mm |
| April | 7.2 °C | 22.9 °C | 66.8 mm |
| May | 13.2 °C | 27.7 °C | 99.57 mm |
| June | 18.6 °C | 32.7 °C | 86.61 mm |
| July | 20.7 °C | 35.7 °C | 54.61 mm |
| August | 19.9 °C | 35 °C | 84.07 mm |
| September | 15.7 °C | 30.6 °C | 66.8 mm |
| October | 8.7 °C | 24.1 °C | 63.75 mm |
| November | 2 °C | 17.1 °C | 32.77 mm |
| December | -3.1 °C | 11.2 °C | 27.43 mm |
| Annual | 8.3 °C | 23.2 °C | 671.56 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |