Pawnee, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.9 °C (low) to 22.2 °C (high). Annual precipitation averages 976.4 Millimeters. Pawnee 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 | -3.7 °C | 9.6 °C | 34.29 mm |
| February | -1.8 °C | 11.8 °C | 39.62 mm |
| March | 3.2 °C | 17.2 °C | 75.44 mm |
| April | 8.3 °C | 22.3 °C | 101.85 mm |
| May | 14.1 °C | 26.3 °C | 135.89 mm |
| June | 19.1 °C | 31.1 °C | 114.3 mm |
| July | 21.4 °C | 33.9 °C | 97.54 mm |
| August | 20.5 °C | 33.9 °C | 94.74 mm |
| September | 15.8 °C | 29.5 °C | 96.01 mm |
| October | 9.2 °C | 23.5 °C | 89.92 mm |
| November | 2.8 °C | 16.6 °C | 54.1 mm |
| December | -2.2 °C | 10.3 °C | 42.67 mm |
| Annual | 8.9 °C | 22.2 °C | 976.37 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |