Ranshaw, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.4 °C (low) to 15.6 °C (high). Annual precipitation averages 1224.5 Millimeters. Ranshaw 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 | -7.5 °C | 1.8 °C | 92.71 mm |
| February | -6.7 °C | 3.4 °C | 70.1 mm |
| March | -2.5 °C | 8.3 °C | 97.54 mm |
| April | 3.3 °C | 15.6 °C | 105.66 mm |
| May | 8.8 °C | 21.4 °C | 102.36 mm |
| June | 13.8 °C | 25.8 °C | 119.38 mm |
| July | 16.1 °C | 28.5 °C | 107.95 mm |
| August | 15.1 °C | 27.4 °C | 105.41 mm |
| September | 11.2 °C | 23.8 °C | 130.3 mm |
| October | 5.2 °C | 16.9 °C | 111 mm |
| November | 0.1 °C | 10.3 °C | 87.38 mm |
| December | -4.1 °C | 4.4 °C | 94.74 mm |
| Annual | 4.4 °C | 15.6 °C | 1224.53 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |