Belmont, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4 °C (low) to 15.1 °C (high). Annual precipitation averages 1186.7 Millimeters. Belmont is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.5 °C | 1.4 °C | 81.28 mm |
| February | -6.7 °C | 3 °C | 78.99 mm |
| March | -3.1 °C | 7.7 °C | 96.77 mm |
| April | 3.1 °C | 15.6 °C | 103.63 mm |
| May | 8.6 °C | 21 °C | 109.98 mm |
| June | 13.3 °C | 25.2 °C | 116.08 mm |
| July | 15.4 °C | 27.3 °C | 113.03 mm |
| August | 14.6 °C | 26.6 °C | 113.54 mm |
| September | 10.9 °C | 23 °C | 105.41 mm |
| October | 4.8 °C | 16.6 °C | 88.9 mm |
| November | -0.6 °C | 9.7 °C | 84.84 mm |
| December | -4.4 °C | 3.8 °C | 94.23 mm |
| Annual | 4 °C | 15.1 °C | 1186.68 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°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 |