Inola, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.9 °C (low) to 21.6 °C (high). Annual precipitation averages 1110.2 Millimeters. Inola 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 | 8.9 °C | 49.53 mm |
| February | -1.7 °C | 11.5 °C | 54.36 mm |
| March | 3 °C | 16.6 °C | 91.69 mm |
| April | 8.1 °C | 21.6 °C | 114.3 mm |
| May | 14 °C | 25.7 °C | 150.62 mm |
| June | 19.1 °C | 30.3 °C | 120.4 mm |
| July | 21.3 °C | 33.3 °C | 98.04 mm |
| August | 20.4 °C | 33.2 °C | 87.88 mm |
| September | 15.7 °C | 29 °C | 103.63 mm |
| October | 9.1 °C | 22.8 °C | 97.03 mm |
| November | 2.8 °C | 16.3 °C | 78.49 mm |
| December | -1.9 °C | 10.2 °C | 64.26 mm |
| Annual | 8.9 °C | 21.6 °C | 1110.23 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 |