Southwest Greensburg weather by month
What a typical year looks like in Southwest Greensburg, Pennsylvania: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Donegal 2 NW, 22 km from Southwest Greensburg; records cover 1943–2026.
The year at a glance
- Precipitation a year
- 50.1 in1273 mm
- Snow a year
- Rare
- Last spring freeze
- May 10
- First fall freeze
- Oct 14
- Heating degree days
- 6,105
- Cooling degree days
- 526
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −2°−19° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
Southwest Greensburg in January
Highs average 35°2° and lows 19°−7°, with 5 in126 mm of precipitation in a typical January.
- Record high
- 72°22° (1950)
- Record low
- −22°−30° (1985)
- Heating degree days
- 1172
- Cooling degree days
- 0
Southwest Greensburg in February
Highs average 39°4° and lows 20°−7°, with 3.5 in89 mm of precipitation in a typical February.
- Record high
- 75°24° (2017)
- Record low
- −20°−29° (1963)
- Heating degree days
- 987
- Cooling degree days
- 0
Southwest Greensburg in March
Highs average 47°8° and lows 26°−3°, with 3.7 in93 mm of precipitation in a typical March.
- Record high
- 82°28° (1945)
- Record low
- −13°−25° (1986)
- Heating degree days
- 874
- Cooling degree days
- 0
Southwest Greensburg in April
Highs average 60°16° and lows 37°3°, with 4.1 in104 mm of precipitation in a typical April.
- Record high
- 90°32° (1985)
- Record low
- 8°−13° (1950)
- Heating degree days
- 495
- Cooling degree days
- 6
Southwest Greensburg in May
Highs average 70°21° and lows 47°9°, with 4.7 in120 mm of precipitation in a typical May.
- Record high
- 92°33° (1977)
- Record low
- 16°−9° (1947)
- Heating degree days
- 233
- Cooling degree days
- 33
Southwest Greensburg in June
Highs average 77°25° and lows 56°13°, with 4.9 in125 mm of precipitation in a typical June.
- Record high
- 95°35° (1967)
- Record low
- 28°−2° (1949)
- Heating degree days
- 53
- Cooling degree days
- 103
Southwest Greensburg in July
Highs average 81°27° and lows 60°15°, with 4.6 in118 mm of precipitation in a typical July.
- Record high
- 98°37° (1977)
- Record low
- 35°2° (1957)
- Heating degree days
- 16
- Cooling degree days
- 175
Southwest Greensburg in August
Highs average 79°26° and lows 59°15°, with 4.2 in106 mm of precipitation in a typical August.
- Record high
- 98°37° (1948)
- Record low
- 32°0° (1950)
- Heating degree days
- 22
- Cooling degree days
- 149
Southwest Greensburg in September
Highs average 74°23° and lows 52°11°, with 3.9 in98 mm of precipitation in a typical September.
- Record high
- 96°36° (1973)
- Record low
- 22°−6° (1947)
- Heating degree days
- 122
- Cooling degree days
- 53
Southwest Greensburg in OctoberThis month
Highs average 63°17° and lows 41°5°, with 3.3 in84 mm of precipitation in a typical October.
- Record high
- 86°30° (1951)
- Record low
- 9°−13° (1952)
- Heating degree days
- 416
- Cooling degree days
- 7
Southwest Greensburg in November
Highs average 51°10° and lows 32°0°, with 3.7 in93 mm of precipitation in a typical November.
- Record high
- 80°27° (1961)
- Record low
- −6°−21° (1958)
- Heating degree days
- 712
- Cooling degree days
- 0
Southwest Greensburg in December
Highs average 41°5° and lows 25°−4°, with 4.7 in118 mm of precipitation in a typical December.
- Record high
- 74°23° (1966)
- Record low
- −14°−26° (1960)
- Heating degree days
- 1003
- Cooling degree days
- 0