Rosston, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 44.1 °F (low) to 71.6 °F (high). Annual precipitation averages 22.8 Inches. Rosston is located in USDA Plant Hardiness Zone 7a. 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 | 21.5 °F | 48.8 °F | 0.7 in. |
| February | 24.3 °F | 52.2 °F | 0.75 in. |
| March | 33.0 °F | 62.2 °F | 1.62 in. |
| April | 41.9 °F | 70.6 °F | 2.13 in. |
| May | 53.1 °F | 80.3 °F | 2.72 in. |
| June | 63.6 °F | 89.3 °F | 3.52 in. |
| July | 68.4 °F | 94.8 °F | 2.64 in. |
| August | 66.5 °F | 93.1 °F | 3.09 in. |
| September | 57.7 °F | 85.4 °F | 1.6 in. |
| October | 44.2 °F | 73.1 °F | 2.07 in. |
| November | 31.6 °F | 60.3 °F | 0.89 in. |
| December | 22.8 °F | 49.0 °F | 1.09 in. |
| Annual | 44.1 °F | 71.6 °F | 22.82 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |