Heber Springs, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.5 °C (low) to 21.8 °C (high). Annual precipitation averages 1298.2 Millimeters. Heber Springs is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.1 °C | 9.3 °C | 92.2 mm |
| February | -0.4 °C | 11.8 °C | 93.73 mm |
| March | 3.8 °C | 16.7 °C | 124.46 mm |
| April | 8.8 °C | 22.2 °C | 127.76 mm |
| May | 14.3 °C | 26.4 °C | 125.73 mm |
| June | 19.2 °C | 30.7 °C | 90.68 mm |
| July | 21.1 °C | 32.9 °C | 103.63 mm |
| August | 20.2 °C | 32.7 °C | 94.23 mm |
| September | 16 °C | 29.1 °C | 88.9 mm |
| October | 9.3 °C | 23.1 °C | 106.43 mm |
| November | 3.6 °C | 16.1 °C | 127.76 mm |
| December | -0.3 °C | 10.8 °C | 122.68 mm |
| Annual | 9.5 °C | 21.8 °C | 1298.19 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |