Hulmeville, Pennsylvania has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.7 °C (low) to 18.1 °C (high). Annual precipitation averages 1228.1 Millimeters. Hulmeville is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.9 °C | 5 °C | 89.92 mm |
| February | -3.2 °C | 6.4 °C | 71.12 mm |
| March | 0.7 °C | 10.8 °C | 113.03 mm |
| April | 6.2 °C | 17.7 °C | 91.44 mm |
| May | 11.6 °C | 22.9 °C | 105.66 mm |
| June | 16.9 °C | 27.9 °C | 108.97 mm |
| July | 20 °C | 30.6 °C | 121.67 mm |
| August | 19.1 °C | 29.6 °C | 125.73 mm |
| September | 15 °C | 26.1 °C | 104.9 mm |
| October | 8.6 °C | 19.4 °C | 101.09 mm |
| November | 3 °C | 13.3 °C | 82.55 mm |
| December | -1.1 °C | 7.7 °C | 112.01 mm |
| Annual | 7.7 °C | 18.1 °C | 1228.09 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |