Marshallton weather by month
What a typical year looks like in Marshallton, Pennsylvania: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Sunbury, 22 km from Marshallton; records cover 1957–2026.
The year at a glance
- Precipitation a year
- 43.7 in1110 mm
- Snow a year
- 29 in73 cm
- Last spring freeze
- Apr 30
- First fall freeze
- Oct 15
- Heating degree days
- 6,009
- Cooling degree days
- 669
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 2°−17° (heating, 99%) and 93°34° (cooling, 1%).
Month by month
Marshallton in January
Highs average 35°2° and lows 19°−7°, with 3 in76 mm of precipitation and 8 in19 cm of snow in a typical January.
- Record high
- 71°22° (1967)
- Record low
- −15°−26° (1961)
- Heating degree days
- 1175
- Cooling degree days
- 0
Marshallton in February
Highs average 39°4° and lows 21°−6°, with 2.3 in58 mm of precipitation and 9 in22 cm of snow in a typical February.
- Record high
- 77°25° (2017)
- Record low
- −10°−23° (1961)
- Heating degree days
- 986
- Cooling degree days
- 0
Marshallton in March
Highs average 48°9° and lows 27°−3°, with 3.3 in85 mm of precipitation and 5 in13 cm of snow in a typical March.
- Record high
- 81°27° (2007)
- Record low
- −1°−18° (2003)
- Heating degree days
- 851
- Cooling degree days
- 0
Marshallton in April
Highs average 61°16° and lows 37°3°, with 3.7 in95 mm of precipitation and 0.6 in1.5 cm of snow in a typical April.
- Record high
- 92°33° (1960)
- Record low
- 16°−9° (1964)
- Heating degree days
- 480
- Cooling degree days
- 5
Marshallton in May
Highs average 72°22° and lows 47°8°, with 3.8 in96 mm of precipitation in a typical May.
- Record high
- 97°36° (1975)
- Record low
- 28°−2° (1962)
- Heating degree days
- 206
- Cooling degree days
- 33
Marshallton in June
Highs average 80°27° and lows 57°14°, with 4.4 in111 mm of precipitation in a typical June.
- Record high
- 100°38° (1959)
- Record low
- 37°3° (2003)
- Heating degree days
- 38
- Cooling degree days
- 136
Marshallton in July
Highs average 84°29° and lows 60°16°, with 4.3 in110 mm of precipitation in a typical July.
- Record high
- 102°39° (1966)
- Record low
- 41°5° (2008)
- Heating degree days
- 8
- Cooling degree days
- 236
Marshallton in August
Highs average 82°28° and lows 59°15°, with 3.9 in100 mm of precipitation in a typical August.
- Record high
- 99°37° (1962)
- Record low
- 41°5° (1965)
- Heating degree days
- 12
- Cooling degree days
- 188
Marshallton in September
Highs average 75°24° and lows 51°11°, with 4.5 in115 mm of precipitation in a typical September.
- Record high
- 96°36° (1964)
- Record low
- 27°−3° (1963)
- Heating degree days
- 120
- Cooling degree days
- 64
Marshallton in OctoberThis month
Highs average 64°18° and lows 40°5°, with 3.9 in100 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 91°33° (2007)
- Record low
- 0°−18° (1956)
- Heating degree days
- 410
- Cooling degree days
- 7
Marshallton in November
Highs average 51°10° and lows 32°0°, with 3.2 in80 mm of precipitation and 1.5 in3.8 cm of snow in a typical November.
- Record high
- 81°27° (2024)
- Record low
- 8°−13° (1964)
- Heating degree days
- 711
- Cooling degree days
- 0
Marshallton in December
Highs average 40°5° and lows 25°−4°, with 3.3 in85 mm of precipitation and 5 in12 cm of snow in a typical December.
- Record high
- 71°22° (2006)
- Record low
- −12°−24° (1960)
- Heating degree days
- 1012
- Cooling degree days
- 0