Bethel, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.5 °F (low) to 62 °F (high). Annual precipitation averages 48.9 Inches. Bethel is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.2 °F | 37.2 °F | 3.44 in. |
| February | 21.4 °F | 40.1 °F | 2.73 in. |
| March | 29.2 °F | 48.9 °F | 3.87 in. |
| April | 39.3 °F | 61.6 °F | 3.94 in. |
| May | 49.5 °F | 71.7 °F | 3.96 in. |
| June | 58.6 °F | 80.3 °F | 5.07 in. |
| July | 63.0 °F | 85.1 °F | 4.8 in. |
| August | 61.3 °F | 83.2 °F | 4.35 in. |
| September | 54.0 °F | 76.4 °F | 4.96 in. |
| October | 42.4 °F | 64.6 °F | 4.41 in. |
| November | 33.0 °F | 52.5 °F | 3.49 in. |
| December | 25.8 °F | 41.9 °F | 3.9 in. |
| Annual | 41.5 °F | 62 °F | 48.92 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |