York Springs, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.1 °C (low) to 17 °C (high). Annual precipitation averages 1189.2 Millimeters. York Springs is located in USDA Plant Hardiness Zone 7a. 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 | -5.5 °C | 3.6 °C | 87.63 mm |
| February | -4.9 °C | 5.1 °C | 72.64 mm |
| March | -0.8 °C | 9.9 °C | 104.9 mm |
| April | 5 °C | 16.8 °C | 98.55 mm |
| May | 10.6 °C | 22.1 °C | 107.95 mm |
| June | 15.7 °C | 26.9 °C | 104.39 mm |
| July | 18.1 °C | 29.7 °C | 102.11 mm |
| August | 17.1 °C | 28.6 °C | 99.82 mm |
| September | 13.1 °C | 24.8 °C | 128.27 mm |
| October | 6.8 °C | 18.3 °C | 103.89 mm |
| November | 1.3 °C | 12 °C | 86.61 mm |
| December | -2.8 °C | 5.8 °C | 92.46 mm |
| Annual | 6.1 °C | 17 °C | 1189.22 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 7a : -17.8°C to -15°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 |