Mont Alto weather by month
What a typical year looks like in Mont Alto, Pennsylvania: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Shippensburg, 25 km from Mont Alto; records cover 1911–2026.
The year at a glance
- Precipitation a year
- 42.5 in1079 mm
- Snow a year
- 34 in85 cm
- Last spring freeze
- Apr 16
- First fall freeze
- Oct 26
- Heating degree days
- 5,267
- Cooling degree days
- 1,014
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 96°36° (cooling, 1%).
Month by month
Mont Alto in January
Highs average 38°3° and lows 22°−5°, with 3.2 in81 mm of precipitation and 10 in25 cm of snow in a typical January.
- Record high
- 71°22° (1950)
- Record low
- −16°−27° (1994)
- Heating degree days
- 1079
- Cooling degree days
- 0
Mont Alto in February
Highs average 42°6° and lows 24°−5°, with 2.7 in68 mm of precipitation and 10 in26 cm of snow in a typical February.
- Record high
- 82°28° (2018)
- Record low
- −10°−23° (1934)
- Heating degree days
- 899
- Cooling degree days
- 0
Mont Alto in March
Highs average 51°11° and lows 31°−1°, with 3.7 in94 mm of precipitation and 7 in17 cm of snow in a typical March.
- Record high
- 87°31° (1998)
- Record low
- −1°−18° (2015)
- Heating degree days
- 743
- Cooling degree days
- 1
Mont Alto in April
Highs average 64°18° and lows 41°5°, with 3.6 in92 mm of precipitation and 0.4 in1 cm of snow in a typical April.
- Record high
- 94°34° (1976)
- Record low
- 15°−9° (1982)
- Heating degree days
- 387
- Cooling degree days
- 12
Mont Alto in May
Highs average 74°23° and lows 51°10°, with 4 in102 mm of precipitation in a typical May.
- Record high
- 97°36° (1996)
- Record low
- 27°−3° (1947)
- Heating degree days
- 146
- Cooling degree days
- 67
Mont Alto in June
Highs average 83°28° and lows 60°15°, with 4 in102 mm of precipitation in a typical June.
- Record high
- 101°38° (1934)
- Record low
- 38°3° (1944)
- Heating degree days
- 20
- Cooling degree days
- 207
Mont Alto in July
Highs average 87°31° and lows 64°18°, with 4 in101 mm of precipitation in a typical July.
- Record high
- 105°41° (2011)
- Record low
- 45°7° (1943)
- Heating degree days
- 1
- Cooling degree days
- 332
Mont Alto in August
Highs average 85°30° and lows 62°17°, with 3.3 in85 mm of precipitation in a typical August.
- Record high
- 102°39° (1948)
- Record low
- 38°3° (1982)
- Heating degree days
- 4
- Cooling degree days
- 274
Mont Alto in September
Highs average 78°25° and lows 55°13°, with 4.3 in110 mm of precipitation in a typical September.
- Record high
- 104°40° (1953)
- Record low
- 29°−2° (1947)
- Heating degree days
- 71
- Cooling degree days
- 107
Mont Alto in OctoberThis month
Highs average 66°19° and lows 44°7°, with 3.3 in85 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 95°35° (1941)
- Record low
- 20°−7° (1969)
- Heating degree days
- 331
- Cooling degree days
- 14
Mont Alto in November
Highs average 53°12° and lows 34°1°, with 3 in76 mm of precipitation and 0.8 in2 cm of snow in a typical November.
- Record high
- 83°28° (1950)
- Record low
- 3°−16° (1938)
- Heating degree days
- 639
- Cooling degree days
- 0
Mont Alto in December
Highs average 42°6° and lows 27°−3°, with 3.4 in85 mm of precipitation and 5 in14 cm of snow in a typical December.
- Record high
- 75°24° (1984)
- Record low
- −8°−22° (1960)
- Heating degree days
- 947
- Cooling degree days
- 0