Deer Creek, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.2 °C (low) to 21.7 °C (high). Annual precipitation averages 887.5 Millimeters. Deer Creek 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 | -4.6 °C | 8.2 °C | 28.19 mm |
| February | -2.8 °C | 10.7 °C | 33.78 mm |
| March | 2.1 °C | 16.1 °C | 64.52 mm |
| April | 7 °C | 21.4 °C | 89.15 mm |
| May | 13.3 °C | 26.2 °C | 120.65 mm |
| June | 18.8 °C | 31.8 °C | 121.92 mm |
| July | 21.3 °C | 34.5 °C | 98.55 mm |
| August | 20.3 °C | 33.8 °C | 91.44 mm |
| September | 15.8 °C | 29.7 °C | 70.1 mm |
| October | 8.7 °C | 22.9 °C | 86.11 mm |
| November | 2.1 °C | 15.6 °C | 45.21 mm |
| December | -3.2 °C | 9.1 °C | 37.85 mm |
| Annual | 8.2 °C | 21.7 °C | 887.47 mm |
| 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 : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |