Zion weather by month
What a typical year looks like in Zion, Pennsylvania: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at STATE COLLEGE, 20 km from Zion; records cover 1882–2026.
The year at a glance
- Precipitation a year
- 41.5 in1055 mm
- Snow a year
- 44 in111 cm
- Last spring freeze
- Apr 25
- First fall freeze
- Oct 23
- Heating degree days
- 6,050
- Cooling degree days
- 666
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 3°−16° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Zion in January
Highs average 34°1° and lows 21°−6°, with 2.9 in74 mm of precipitation and 11 in29 cm of snow in a typical January.
- Record high
- 71°22° (1950)
- Record low
- −18°−28° (1994)
- Heating degree days
- 1172
- Cooling degree days
- 0
Zion in February
Highs average 37°3° and lows 22°−6°, with 2.5 in62 mm of precipitation and 12 in29 cm of snow in a typical February.
- Record high
- 74°23° (2017)
- Record low
- −20°−29° (1899)
- Heating degree days
- 1004
- Cooling degree days
- 0
Zion in March
Highs average 46°8° and lows 28°−2°, with 3.4 in86 mm of precipitation and 9 in24 cm of snow in a typical March.
- Record high
- 86°30° (1907)
- Record low
- −9°−23° (1900)
- Heating degree days
- 870
- Cooling degree days
- 0
Zion in April
Highs average 59°15° and lows 39°4°, with 3.5 in89 mm of precipitation and 0.9 in2.3 cm of snow in a typical April.
- Record high
- 94°34° (1976)
- Record low
- 1°−17° (1923)
- Heating degree days
- 477
- Cooling degree days
- 6
Zion in May
Highs average 69°21° and lows 50°10°, with 3.6 in92 mm of precipitation in a typical May.
- Record high
- 93°34° (1895)
- Record low
- 27°−3° (1890)
- Heating degree days
- 203
- Cooling degree days
- 44
Zion in June
Highs average 77°25° and lows 59°15°, with 4.1 in104 mm of precipitation in a typical June.
- Record high
- 96°36° (1933)
- Record low
- 34°1° (1913)
- Heating degree days
- 41
- Cooling degree days
- 136
Zion in July
Highs average 81°27° and lows 63°17°, with 3.8 in96 mm of precipitation in a typical July.
- Record high
- 102°39° (1936)
- Record low
- 40°4° (1929)
- Heating degree days
- 5
- Cooling degree days
- 228
Zion in August
Highs average 79°26° and lows 62°16°, with 4.2 in106 mm of precipitation in a typical August.
- Record high
- 101°38° (1930)
- Record low
- 30°−1° (1893)
- Heating degree days
- 12
- Cooling degree days
- 181
Zion in September
Highs average 72°22° and lows 54°12°, with 4 in100 mm of precipitation in a typical September.
- Record high
- 98°37° (1953)
- Record low
- 28°−2° (1904)
- Heating degree days
- 117
- Cooling degree days
- 63
Zion in OctoberThis month
Highs average 61°16° and lows 43°6°, with 3.5 in88 mm of precipitation and 0.4 in1 cm of snow in a typical October.
- Record high
- 90°32° (1941)
- Record low
- 12°−11° (1887)
- Heating degree days
- 416
- Cooling degree days
- 8
Zion in November
Highs average 49°9° and lows 34°1°, with 3 in76 mm of precipitation and 2.6 in6.6 cm of snow in a typical November.
- Record high
- 81°27° (1950)
- Record low
- 1°−17° (1929)
- Heating degree days
- 716
- Cooling degree days
- 0
Zion in December
Highs average 38°4° and lows 26°−3°, with 3.2 in81 mm of precipitation and 8 in19 cm of snow in a typical December.
- Record high
- 71°22° (1998)
- Record low
- −13°−25° (1917)
- Heating degree days
- 1017
- Cooling degree days
- 0