New Baltimore, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.5 °C (low) to 15.8 °C (high). Annual precipitation averages 1044.4 Millimeters. New Baltimore is located in USDA Plant Hardiness Zone 6a. 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 | -7.7 °C | 2.1 °C | 78.99 mm |
| February | -6.9 °C | 3.9 °C | 69.09 mm |
| March | -3.3 °C | 8.7 °C | 93.47 mm |
| April | 2.5 °C | 16.3 °C | 92.96 mm |
| May | 8 °C | 21.6 °C | 110.74 mm |
| June | 12.7 °C | 25.9 °C | 106.93 mm |
| July | 15 °C | 28.2 °C | 91.19 mm |
| August | 13.9 °C | 27.4 °C | 81.28 mm |
| September | 10 °C | 23.8 °C | 89.92 mm |
| October | 4 °C | 17.1 °C | 76.45 mm |
| November | -1.3 °C | 10.3 °C | 72.39 mm |
| December | -4.9 °C | 4.6 °C | 81.03 mm |
| Annual | 3.5 °C | 15.8 °C | 1044.44 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 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 |