York Haven, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.1 °F (low) to 63.1 °F (high). Annual precipitation averages 43.8 Inches. York Haven 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 | 22.8 °F | 38.7 °F | 3.04 in. |
| February | 23.8 °F | 41.3 °F | 2.54 in. |
| March | 31.5 °F | 50.3 °F | 3.74 in. |
| April | 41.7 °F | 63.0 °F | 3.4 in. |
| May | 51.9 °F | 72.9 °F | 3.99 in. |
| June | 61.5 °F | 81.4 °F | 4.07 in. |
| July | 65.8 °F | 86.3 °F | 4.47 in. |
| August | 64.1 °F | 84.5 °F | 3.74 in. |
| September | 56.9 °F | 77.3 °F | 4.4 in. |
| October | 45.5 °F | 65.1 °F | 3.98 in. |
| November | 35.3 °F | 53.8 °F | 3.0 in. |
| December | 27.8 °F | 43.0 °F | 3.39 in. |
| Annual | 44.1 °F | 63.1 °F | 43.76 in. |
| 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 : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |