Buffalo, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 44.2 °F (low) to 72.7 °F (high). Annual precipitation averages 23 Inches. Buffalo is located in USDA Plant Hardiness Zone 6b. 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 | 21.1 °F | 49.3 °F | 0.62 in. |
| February | 23.9 °F | 52.5 °F | 0.79 in. |
| March | 32.9 °F | 62.9 °F | 1.59 in. |
| April | 42.0 °F | 71.7 °F | 2.1 in. |
| May | 53.2 °F | 81.3 °F | 2.83 in. |
| June | 64.0 °F | 91.0 °F | 3.75 in. |
| July | 68.8 °F | 96.4 °F | 2.54 in. |
| August | 66.8 °F | 94.5 °F | 3.1 in. |
| September | 58.2 °F | 87.1 °F | 1.68 in. |
| October | 44.5 °F | 74.2 °F | 2.19 in. |
| November | 31.9 °F | 61.3 °F | 0.9 in. |
| December | 22.6 °F | 49.7 °F | 0.95 in. |
| Annual | 44.2 °F | 72.7 °F | 23.04 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |