Salina, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.7 °C (low) to 21.4 °C (high). Annual precipitation averages 1165.1 Millimeters. Salina is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.8 °C | 8.6 °C | 57.66 mm |
| February | -1.8 °C | 11.2 °C | 56.64 mm |
| March | 2.8 °C | 16.3 °C | 93.98 mm |
| April | 7.9 °C | 21.4 °C | 116.59 mm |
| May | 13.7 °C | 25.6 °C | 157.48 mm |
| June | 18.8 °C | 30.1 °C | 122.94 mm |
| July | 21.2 °C | 33.2 °C | 103.89 mm |
| August | 20.2 °C | 33.1 °C | 90.93 mm |
| September | 15.6 °C | 28.8 °C | 107.44 mm |
| October | 8.9 °C | 22.7 °C | 103.38 mm |
| November | 2.9 °C | 16.1 °C | 85.85 mm |
| December | -2 °C | 10 °C | 68.33 mm |
| Annual | 8.7 °C | 21.4 °C | 1165.11 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 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 |