Perry, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.5 °C (low) to 22.1 °C (high). Annual precipitation averages 915.2 Millimeters. Perry is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.2 °C | 9.2 °C | 30.99 mm |
| February | -2.5 °C | 11.3 °C | 38.1 mm |
| March | 2.4 °C | 16.8 °C | 65.53 mm |
| April | 7.5 °C | 22.1 °C | 100.33 mm |
| May | 13.6 °C | 26.4 °C | 129.54 mm |
| June | 19 °C | 31.5 °C | 117.6 mm |
| July | 21.4 °C | 34.3 °C | 88.9 mm |
| August | 20.5 °C | 34.2 °C | 87.88 mm |
| September | 16.1 °C | 29.8 °C | 82.04 mm |
| October | 9 °C | 23.4 °C | 80.01 mm |
| November | 2.4 °C | 16.2 °C | 50.8 mm |
| December | -2.8 °C | 9.8 °C | 43.43 mm |
| Annual | 8.5 °C | 22.1 °C | 915.15 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |