Falling Spring, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.2 °C (low) to 17.2 °C (high). Annual precipitation averages 1081.5 Millimeters. Falling Spring is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.5 °C | 4.7 °C | 76.2 mm |
| February | -5.5 °C | 6.7 °C | 75.18 mm |
| March | -1.9 °C | 11.6 °C | 96.27 mm |
| April | 2.9 °C | 18.1 °C | 95.25 mm |
| May | 8.4 °C | 22.6 °C | 118.87 mm |
| June | 13.1 °C | 26.1 °C | 101.6 mm |
| July | 15.4 °C | 28 °C | 99.06 mm |
| August | 14.8 °C | 27.4 °C | 89.92 mm |
| September | 11.2 °C | 24.4 °C | 92.2 mm |
| October | 4.3 °C | 18.7 °C | 71.37 mm |
| November | -1.3 °C | 12.1 °C | 69.34 mm |
| December | -4.3 °C | 6.4 °C | 96.27 mm |
| Annual | 4.2 °C | 17.2 °C | 1081.53 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |