Newton Hamilton, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.2 °F (low) to 62.8 °F (high). Annual precipitation averages 40.4 Inches. 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 | 20.9 °F | 37.6 °F | 2.73 in. |
| February | 22.1 °F | 41.1 °F | 2.29 in. |
| March | 28.8 °F | 49.9 °F | 3.37 in. |
| April | 38.5 °F | 63.1 °F | 3.59 in. |
| May | 48.9 °F | 73.2 °F | 3.9 in. |
| June | 58.1 °F | 81.3 °F | 3.94 in. |
| July | 62.2 °F | 85.7 °F | 3.47 in. |
| August | 60.8 °F | 84.0 °F | 3.55 in. |
| September | 53.5 °F | 77.1 °F | 3.97 in. |
| October | 42.1 °F | 65.1 °F | 3.49 in. |
| November | 32.8 °F | 53.2 °F | 2.92 in. |
| December | 25.9 °F | 41.8 °F | 3.15 in. |
| Annual | 41.2 °F | 62.8 °F | 40.37 in. |
| 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 : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |