Souderton, 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 63.1 °F (high). Annual precipitation averages 48.1 Inches. Souderton 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.7 °F | 38.8 °F | 3.29 in. |
| February | 23.1 °F | 41.6 °F | 2.84 in. |
| March | 30.2 °F | 50.1 °F | 3.91 in. |
| April | 40.4 °F | 62.6 °F | 3.87 in. |
| May | 50.2 °F | 72.3 °F | 4.18 in. |
| June | 59.5 °F | 81.1 °F | 4.44 in. |
| July | 64.4 °F | 85.9 °F | 4.63 in. |
| August | 62.8 °F | 84.1 °F | 4.26 in. |
| September | 55.6 °F | 77.5 °F | 4.58 in. |
| October | 43.8 °F | 65.2 °F | 4.44 in. |
| November | 34.0 °F | 54.1 °F | 3.28 in. |
| December | 27.1 °F | 43.9 °F | 4.42 in. |
| Annual | 42.7 °F | 63.1 °F | 48.14 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |