Pullman, West Virginia has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.2 °C (low) to 18.2 °C (high). Annual precipitation averages 1202.2 Millimeters. Pullman 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.9 °C | 4.7 °C | 88.14 mm |
| February | -4.9 °C | 6.9 °C | 83.57 mm |
| March | -1.4 °C | 12.2 °C | 106.93 mm |
| April | 4.1 °C | 19.4 °C | 97.28 mm |
| May | 9.7 °C | 23.8 °C | 123.95 mm |
| June | 14.5 °C | 27.8 °C | 119.13 mm |
| July | 16.9 °C | 29.4 °C | 133.1 mm |
| August | 16 °C | 28.9 °C | 101.85 mm |
| September | 12.1 °C | 26.1 °C | 91.95 mm |
| October | 5.2 °C | 19.5 °C | 82.55 mm |
| November | -0.3 °C | 12.9 °C | 80.26 mm |
| December | -3.4 °C | 7.1 °C | 93.47 mm |
| Annual | 5.2 °C | 18.2 °C | 1202.18 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |