East Side weather by month
What a typical year looks like in East Side, Pennsylvania: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Francis E Walter Dam, 7 km from East Side; records cover 1959–2026.
The year at a glance
- Precipitation a year
- 48.8 in1241 mm
- Snow a year
- Rare
- Last spring freeze
- May 18
- First fall freeze
- Oct 5
- Heating degree days
- 7,024
- Cooling degree days
- 345
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −4°−20° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
East Side in January
Highs average 31°0° and lows 16°−9°, with 3.1 in80 mm of precipitation in a typical January.
- Record high
- 67°19° (2008)
- Record low
- −26°−32° (1981)
- Heating degree days
- 1286
- Cooling degree days
- 0
East Side in February
Highs average 35°2° and lows 17°−8°, with 2.6 in66 mm of precipitation in a typical February.
- Record high
- 72°22° (2017)
- Record low
- −28°−33° (1979)
- Heating degree days
- 1099
- Cooling degree days
- 0
East Side in March
Highs average 43°6° and lows 24°−5°, with 3.7 in93 mm of precipitation in a typical March.
- Record high
- 84°29° (1998)
- Record low
- −13°−25° (1967)
- Heating degree days
- 981
- Cooling degree days
- 0
East Side in April
Highs average 57°14° and lows 34°1°, with 4.1 in103 mm of precipitation in a typical April.
- Record high
- 90°32° (1976)
- Record low
- 4°−16° (1975)
- Heating degree days
- 591
- Cooling degree days
- 3
East Side in May
Highs average 67°19° and lows 45°7°, with 4.2 in106 mm of precipitation in a typical May.
- Record high
- 95°35° (2006)
- Record low
- 21°−6° (1974)
- Heating degree days
- 292
- Cooling degree days
- 19
East Side in June
Highs average 74°23° and lows 54°12°, with 4.8 in122 mm of precipitation in a typical June.
- Record high
- 94°34° (1999)
- Record low
- 27°−3° (1972)
- Heating degree days
- 94
- Cooling degree days
- 65
East Side in July
Highs average 79°26° and lows 58°14°, with 4.5 in114 mm of precipitation in a typical July.
- Record high
- 96°36° (1966)
- Record low
- 30°−1° (1989)
- Heating degree days
- 28
- Cooling degree days
- 130
East Side in August
Highs average 77°25° and lows 56°13°, with 4.6 in116 mm of precipitation in a typical August.
- Record high
- 98°37° (2006)
- Record low
- 31°−1° (1965)
- Heating degree days
- 41
- Cooling degree days
- 97
East Side in September
Highs average 71°22° and lows 49°9°, with 5.2 in133 mm of precipitation in a typical September.
- Record high
- 91°33° (1980)
- Record low
- 23°−5° (1974)
- Heating degree days
- 185
- Cooling degree days
- 29
East Side in OctoberThis month
Highs average 59°15° and lows 38°3°, with 4.7 in119 mm of precipitation in a typical October.
- Record high
- 86°30° (2007)
- Record low
- 11°−12° (1969)
- Heating degree days
- 507
- Cooling degree days
- 2
East Side in November
Highs average 47°8° and lows 30°−1°, with 3.6 in92 mm of precipitation in a typical November.
- Record high
- 77°25° (1982)
- Record low
- −1°−18° (2018)
- Heating degree days
- 804
- Cooling degree days
- 0
East Side in December
Highs average 36°2° and lows 22°−6°, with 3.8 in98 mm of precipitation in a typical December.
- Record high
- 67°19° (2015)
- Record low
- −22°−30° (1989)
- Heating degree days
- 1116
- Cooling degree days
- 0