Rainsburg, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4 °C (low) to 16.1 °C (high). Annual precipitation averages 1051.8 Millimeters. Rainsburg is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.2 °C | 2.6 °C | 72.9 mm |
| February | -6.4 °C | 4.6 °C | 62.74 mm |
| March | -2.8 °C | 9.4 °C | 85.6 mm |
| April | 3 °C | 16.3 °C | 93.73 mm |
| May | 8.6 °C | 21.7 °C | 114.05 mm |
| June | 13.1 °C | 26.1 °C | 105.66 mm |
| July | 15.4 °C | 28.4 °C | 92.96 mm |
| August | 14.3 °C | 27.7 °C | 87.12 mm |
| September | 10.4 °C | 23.8 °C | 99.57 mm |
| October | 4.4 °C | 17.2 °C | 81.28 mm |
| November | -0.8 °C | 10.8 °C | 74.68 mm |
| December | -4.5 °C | 4.9 °C | 81.53 mm |
| Annual | 4 °C | 16.1 °C | 1051.82 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |