Newton Hamilton, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.1 °C (low) to 17.1 °C (high). Annual precipitation averages 1025.4 Millimeters. Newton Hamilton is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.2 °C | 3.1 °C | 69.34 mm |
| February | -5.5 °C | 5.1 °C | 58.17 mm |
| March | -1.8 °C | 9.9 °C | 85.6 mm |
| April | 3.6 °C | 17.3 °C | 91.19 mm |
| May | 9.4 °C | 22.9 °C | 99.06 mm |
| June | 14.5 °C | 27.4 °C | 100.08 mm |
| July | 16.8 °C | 29.8 °C | 88.14 mm |
| August | 16 °C | 28.9 °C | 90.17 mm |
| September | 11.9 °C | 25.1 °C | 100.84 mm |
| October | 5.6 °C | 18.4 °C | 88.65 mm |
| November | 0.4 °C | 11.8 °C | 74.17 mm |
| December | -3.4 °C | 5.4 °C | 80.01 mm |
| Annual | 5.1 °C | 17.1 °C | 1025.42 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |