Frederick, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.2 °F (low) to 75.5 °F (high). Annual precipitation averages 28.3 Inches. Frederick 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.2 °F | 53.5 °F | 1.1 in. |
| February | 31.7 °F | 57.2 °F | 1.33 in. |
| March | 40.0 °F | 66.6 °F | 2.18 in. |
| April | 47.8 °F | 75.0 °F | 2.92 in. |
| May | 59.1 °F | 83.9 °F | 3.96 in. |
| June | 68.6 °F | 92.6 °F | 3.37 in. |
| July | 72.2 °F | 96.8 °F | 2.33 in. |
| August | 71.1 °F | 96.3 °F | 2.39 in. |
| September | 63.4 °F | 88.1 °F | 2.78 in. |
| October | 51.1 °F | 77.2 °F | 2.96 in. |
| November | 39.2 °F | 64.5 °F | 1.53 in. |
| December | 30.0 °F | 54.2 °F | 1.41 in. |
| Annual | 50.2 °F | 75.5 °F | 28.26 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 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |