Sparks, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.2 °F (low) to 72 °F (high). Annual precipitation averages 38.8 Inches. Sparks 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 | 26.0 °F | 49.7 °F | 1.47 in. |
| February | 29.5 °F | 54.1 °F | 1.75 in. |
| March | 38.2 °F | 63.1 °F | 2.89 in. |
| April | 47.0 °F | 71.9 °F | 3.84 in. |
| May | 57.2 °F | 79.1 °F | 5.24 in. |
| June | 66.3 °F | 87.3 °F | 4.97 in. |
| July | 70.2 °F | 92.8 °F | 3.64 in. |
| August | 68.6 °F | 92.7 °F | 3.36 in. |
| September | 60.2 °F | 85.0 °F | 3.75 in. |
| October | 48.2 °F | 74.2 °F | 3.75 in. |
| November | 37.7 °F | 62.2 °F | 2.22 in. |
| December | 28.7 °F | 51.4 °F | 1.93 in. |
| Annual | 48.2 °F | 72 °F | 38.81 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |