Warner, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.6 °F (low) to 72.2 °F (high). Annual precipitation averages 45.5 Inches. Warner 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 | 27.6 °F | 49.7 °F | 2.51 in. |
| February | 31.2 °F | 54.0 °F | 2.28 in. |
| March | 39.7 °F | 62.9 °F | 3.83 in. |
| April | 48.2 °F | 72.0 °F | 4.43 in. |
| May | 58.4 °F | 79.1 °F | 5.81 in. |
| June | 67.4 °F | 87.9 °F | 4.73 in. |
| July | 71.3 °F | 92.9 °F | 3.51 in. |
| August | 69.9 °F | 93.1 °F | 3.27 in. |
| September | 62.0 °F | 85.5 °F | 4.65 in. |
| October | 50.0 °F | 74.5 °F | 4.02 in. |
| November | 39.3 °F | 62.7 °F | 3.53 in. |
| December | 30.4 °F | 51.8 °F | 2.88 in. |
| Annual | 49.6 °F | 72.2 °F | 45.45 in. |
| 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 : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |