Souderton weather by month
What a typical year looks like in Souderton, Pennsylvania: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at NORRISTOWN, 22 km from Souderton; records cover 1951–2026.
The year at a glance
- Precipitation a year
- 50.6 in1287 mm
- Snow a year
- 25 in64 cm
- Last spring freeze
- Apr 11
- First fall freeze
- Nov 3
- Heating degree days
- 4,868
- Cooling degree days
- 1,255
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 8°−13° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Souderton in January
Highs average 42°5° and lows 23°−5°, with 3.7 in93 mm of precipitation and 7 in17 cm of snow in a typical January.
- Record high
- 76°24° (2007)
- Record low
- −12°−24° (1982)
- Heating degree days
- 1018
- Cooling degree days
- 0
Souderton in February
Highs average 44°6° and lows 25°−4°, with 3 in76 mm of precipitation and 11 in28 cm of snow in a typical February.
- Record high
- 78°26° (2018)
- Record low
- −5°−21° (1979)
- Heating degree days
- 865
- Cooling degree days
- 0
Souderton in March
Highs average 52°11° and lows 32°0°, with 4.4 in112 mm of precipitation and 3 in8 cm of snow in a typical March.
- Record high
- 86°30° (2025)
- Record low
- 8°−13° (1980)
- Heating degree days
- 718
- Cooling degree days
- 0
Souderton in April
Highs average 65°18° and lows 42°5°, with 3.9 in99 mm of precipitation and 0.2 in0.5 cm of snow in a typical April.
- Record high
- 98°37° (1976)
- Record low
- 15°−9° (1982)
- Heating degree days
- 370
- Cooling degree days
- 15
Souderton in May
Highs average 75°24° and lows 52°11°, with 4.3 in108 mm of precipitation in a typical May.
- Record high
- 98°37° (1962)
- Record low
- 29°−2° (1966)
- Heating degree days
- 127
- Cooling degree days
- 79
Souderton in June
Highs average 84°29° and lows 62°17°, with 4.2 in107 mm of precipitation in a typical June.
- Record high
- 100°38° (1952)
- Record low
- 41°5° (1972)
- Heating degree days
- 13
- Cooling degree days
- 253
Souderton in July
Highs average 89°32° and lows 67°19°, with 4.7 in119 mm of precipitation in a typical July.
- Record high
- 108°42° (2011)
- Record low
- 48°9° (1979)
- Heating degree days
- 0
- Cooling degree days
- 394
Souderton in August
Highs average 87°30° and lows 65°18°, with 5 in126 mm of precipitation in a typical August.
- Record high
- 106°41° (2001)
- Record low
- 40°4° (1982)
- Heating degree days
- 1
- Cooling degree days
- 338
Souderton in September
Highs average 80°27° and lows 58°14°, with 4.9 in125 mm of precipitation in a typical September.
- Record high
- 102°39° (1953)
- Record low
- 34°1° (2014)
- Heating degree days
- 42
- Cooling degree days
- 156
Souderton in OctoberThis month
Highs average 68°20° and lows 45°7°, with 4.3 in110 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 92°33° (2019)
- Record low
- 26°−3° (1952)
- Heating degree days
- 283
- Cooling degree days
- 20
Souderton in November
Highs average 57°14° and lows 35°2°, with 3.6 in92 mm of precipitation and 0.1 in0.3 cm of snow in a typical November.
- Record high
- 85°29° (1971)
- Record low
- 14°−10° (1986)
- Heating degree days
- 572
- Cooling degree days
- 0
Souderton in December
Highs average 46°8° and lows 28°−2°, with 4.7 in120 mm of precipitation and 4 in11 cm of snow in a typical December.
- Record high
- 76°24° (2001)
- Record low
- −10°−23° (1983)
- Heating degree days
- 859
- Cooling degree days
- 0