Pennsburg, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.7 °F (low) to 63.3 °F (high). Annual precipitation averages 49 Inches. Pennsburg 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 | 21.7 °F | 38.8 °F | 3.48 in. |
| February | 23.0 °F | 41.5 °F | 2.86 in. |
| March | 30.3 °F | 50.1 °F | 3.97 in. |
| April | 40.5 °F | 62.9 °F | 3.84 in. |
| May | 50.3 °F | 72.8 °F | 4.15 in. |
| June | 59.5 °F | 81.6 °F | 4.59 in. |
| July | 64.3 °F | 86.5 °F | 4.89 in. |
| August | 62.7 °F | 84.5 °F | 4.46 in. |
| September | 55.3 °F | 77.8 °F | 4.92 in. |
| October | 43.7 °F | 65.5 °F | 4.37 in. |
| November | 34.0 °F | 54.0 °F | 3.35 in. |
| December | 27.1 °F | 43.8 °F | 4.1 in. |
| Annual | 42.7 °F | 63.3 °F | 48.98 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 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |