Fairland, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.5 °C (low) to 21.1 °C (high). Annual precipitation averages 1181.4 Millimeters. Fairland 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 | -3.8 °C | 8.2 °C | 52.58 mm |
| February | -1.9 °C | 10.8 °C | 52.58 mm |
| March | 2.8 °C | 15.9 °C | 90.68 mm |
| April | 7.8 °C | 21.1 °C | 121.92 mm |
| May | 13.4 °C | 25.3 °C | 172.97 mm |
| June | 18.6 °C | 29.9 °C | 127.51 mm |
| July | 20.8 °C | 32.8 °C | 102.87 mm |
| August | 19.8 °C | 32.7 °C | 91.44 mm |
| September | 15.4 °C | 28.4 °C | 116.08 mm |
| October | 8.7 °C | 22.2 °C | 102.87 mm |
| November | 2.8 °C | 15.7 °C | 83.57 mm |
| December | -2 °C | 9.7 °C | 66.29 mm |
| Annual | 8.5 °C | 21.1 °C | 1181.36 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 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |