Chouteau, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48 °F (low) to 70.8 °F (high). Annual precipitation averages 44.6 Inches. Chouteau 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 | 25.5 °F | 47.8 °F | 2.04 in. |
| February | 29.0 °F | 52.6 °F | 2.16 in. |
| March | 37.5 °F | 61.7 °F | 3.61 in. |
| April | 46.6 °F | 70.6 °F | 4.54 in. |
| May | 57.1 °F | 78.0 °F | 6.02 in. |
| June | 66.2 °F | 86.4 °F | 4.77 in. |
| July | 70.3 °F | 91.8 °F | 3.98 in. |
| August | 68.6 °F | 91.7 °F | 3.53 in. |
| September | 60.3 °F | 84.1 °F | 4.17 in. |
| October | 48.5 °F | 73.0 °F | 3.93 in. |
| November | 37.4 °F | 61.2 °F | 3.22 in. |
| December | 28.8 °F | 50.3 °F | 2.59 in. |
| Annual | 48 °F | 70.8 °F | 44.56 in. |
| 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |