Maple Glen, 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 63.4 °F (high). Annual precipitation averages 48.2 Inches. Maple Glen 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 | 22.9 °F | 39.4 °F | 3.41 in. |
| February | 24.6 °F | 42.2 °F | 2.79 in. |
| March | 31.4 °F | 50.5 °F | 4.12 in. |
| April | 41.6 °F | 62.7 °F | 3.75 in. |
| May | 51.4 °F | 72.3 °F | 4.13 in. |
| June | 60.9 °F | 81.4 °F | 4.39 in. |
| July | 66.1 °F | 85.9 °F | 4.76 in. |
| August | 64.4 °F | 84.2 °F | 4.77 in. |
| September | 57.2 °F | 77.8 °F | 4.38 in. |
| October | 45.2 °F | 65.7 °F | 4.08 in. |
| November | 35.3 °F | 54.6 °F | 3.26 in. |
| December | 28.1 °F | 44.4 °F | 4.36 in. |
| Annual | 44.1 °F | 63.4 °F | 48.2 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 | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |