Howe, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.8 °C (low) to 23 °C (high). Annual precipitation averages 1274.6 Millimeters. Howe is located in USDA Plant Hardiness Zone 7b. 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 | -2.2 °C | 10.8 °C | 72.39 mm |
| February | 0 °C | 13.4 °C | 73.15 mm |
| March | 4.4 °C | 18 °C | 101.85 mm |
| April | 9.1 °C | 22.8 °C | 131.57 mm |
| May | 14.6 °C | 26.7 °C | 169.16 mm |
| June | 19.6 °C | 31.5 °C | 111.25 mm |
| July | 21.6 °C | 34.3 °C | 86.36 mm |
| August | 20.7 °C | 34.2 °C | 96.52 mm |
| September | 16.3 °C | 30.2 °C | 113.54 mm |
| October | 9.6 °C | 24.2 °C | 108.97 mm |
| November | 3.9 °C | 17.7 °C | 115.57 mm |
| December | -0.5 °C | 12.2 °C | 94.23 mm |
| Annual | 9.8 °C | 23 °C | 1274.56 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 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |