Mount Pleasant Mills weather by month
What a typical year looks like in Mount Pleasant Mills, Pennsylvania: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Selinsgrove Penn Valley Airport, 17 km from Mount Pleasant Mills; records cover 1947–2026.
The year at a glance
- Precipitation a year
- 40.9 in1039 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 29
- First fall freeze
- Oct 18
- Heating degree days
- 5,790
- Cooling degree days
- 744
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 94°34° (cooling, 1%).
Month by month
Mount Pleasant Mills in January
Highs average 36°2° and lows 20°−7°, with 2.7 in68 mm of precipitation in a typical January.
- Record high
- 69°21° (2002)
- Record low
- −22°−30° (1948)
- Heating degree days
- 1147
- Cooling degree days
- 0
Mount Pleasant Mills in February
Highs average 39°4° and lows 21°−6°, with 2.1 in52 mm of precipitation in a typical February.
- Record high
- 76°24° (2018)
- Record low
- −14°−26° (1948)
- Heating degree days
- 974
- Cooling degree days
- 0
Mount Pleasant Mills in March
Highs average 49°9° and lows 29°−2°, with 3.1 in78 mm of precipitation in a typical March.
- Record high
- 87°31° (1998)
- Record low
- −4°−20° (2003)
- Heating degree days
- 808
- Cooling degree days
- 0
Mount Pleasant Mills in April
Highs average 62°17° and lows 38°3°, with 3.6 in90 mm of precipitation in a typical April.
- Record high
- 93°34° (2002)
- Record low
- 18°−8° (1954)
- Heating degree days
- 452
- Cooling degree days
- 5
Mount Pleasant Mills in May
Highs average 72°22° and lows 49°9°, with 3.6 in90 mm of precipitation in a typical May.
- Record high
- 94°34° (2006)
- Record low
- 29°−2° (1956)
- Heating degree days
- 184
- Cooling degree days
- 43
Mount Pleasant Mills in June
Highs average 81°27° and lows 59°15°, with 3.9 in100 mm of precipitation in a typical June.
- Record high
- 102°39° (1952)
- Record low
- 39°4° (2003)
- Heating degree days
- 26
- Cooling degree days
- 163
Mount Pleasant Mills in July
Highs average 84°29° and lows 62°17°, with 4.2 in106 mm of precipitation in a typical July.
- Record high
- 104°40° (2010)
- Record low
- 46°8° (1952)
- Heating degree days
- 2
- Cooling degree days
- 260
Mount Pleasant Mills in August
Highs average 82°28° and lows 60°16°, with 3.7 in95 mm of precipitation in a typical August.
- Record high
- 100°38° (1953)
- Record low
- 40°4° (1951)
- Heating degree days
- 9
- Cooling degree days
- 198
Mount Pleasant Mills in September
Highs average 76°24° and lows 52°11°, with 4.5 in115 mm of precipitation in a typical September.
- Record high
- 102°39° (1953)
- Record low
- 25°−4° (1947)
- Heating degree days
- 100
- Cooling degree days
- 67
Mount Pleasant Mills in OctoberThis month
Highs average 64°18° and lows 41°5°, with 3.8 in96 mm of precipitation in a typical October.
- Record high
- 93°34° (2007)
- Record low
- 21°−6° (1952)
- Heating degree days
- 395
- Cooling degree days
- 8
Mount Pleasant Mills in November
Highs average 52°11° and lows 32°0°, with 3.1 in77 mm of precipitation in a typical November.
- Record high
- 84°29° (1950)
- Record low
- 10°−12° (2008)
- Heating degree days
- 696
- Cooling degree days
- 0
Mount Pleasant Mills in December
Highs average 41°5° and lows 25°−4°, with 2.8 in71 mm of precipitation in a typical December.
- Record high
- 72°22° (1998)
- Record low
- −16°−27° (1951)
- Heating degree days
- 997
- Cooling degree days
- 0