Caddo, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51 °F (low) to 73.9 °F (high). Annual precipitation averages 44.2 Inches. Caddo is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.9 °F | 52.4 °F | 2.43 in. |
| February | 33.6 °F | 56.7 °F | 2.58 in. |
| March | 41.7 °F | 65.0 °F | 3.79 in. |
| April | 49.5 °F | 73.0 °F | 4.13 in. |
| May | 59.5 °F | 80.4 °F | 6.01 in. |
| June | 68.0 °F | 88.8 °F | 4.51 in. |
| July | 71.5 °F | 94.0 °F | 3.14 in. |
| August | 70.4 °F | 94.4 °F | 2.74 in. |
| September | 63.2 °F | 87.1 °F | 3.88 in. |
| October | 51.3 °F | 76.0 °F | 4.36 in. |
| November | 40.9 °F | 64.5 °F | 3.35 in. |
| December | 32.1 °F | 54.2 °F | 3.26 in. |
| Annual | 51 °F | 73.9 °F | 44.18 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |