Southwest, Pennsylvania
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 37° -29° (1985) 77° (1950) 3.63" 13.6"
February 22° 40° -20° (1979) 76° (1997) 3.32" 9.9"
March 28° 50° -10° (1986) 86° (1929) 3.93" 8.9"
April 38° 62° 6° (1985) 90° (1986) 4.25" 1.3"
May 47° 71° 21° (1981) 93° (1987) 5.03" 0"
June 56° 79° 28° (1977) 98° (1953) 4.78" 0"
July 60° 83° 36° (1981) 102° (1988) 5.09" 0"
August 59° 82° 32° (1982) 100° (1930) 4.21" 0"
September 52° 75° 24° (1985) 97° (1953) 4.18" 0"
October 41° 64° 17° (1980) 92° (1927) 3.04" 0.2"
November 33° 52° -1° (1930) 83° (2003) 4.17" 2.2"
December 24° 41° -14° (1980) 76° (1982) 3.73" 9.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 29° 45° 5° (1929) 70° (1927) 0.13" 0.2"
Dec 2 28° 45° 6° (1930) 66° (2006) 0.13" 0.3"
Dec 3 28° 44° 3° (1966) 72° (1950) 0.13" 0.2"
Dec 4 28° 44° -5° (1966) 76° (1982) 0.13" 0.2"
Dec 5 27° 44° 8° (2002) 73° (2001) 0.13" 0.3"
Dec 6 27° 43° 8° (1954) 75° (1982) 0.12" 0.2"
Dec 7 27° 43° 2° (1977) 75° (1951) 0.13" 0.3"
Dec 8 26° 43° -3° (1977) 70° (1966) 0.13" 0.3"
Dec 9 26° 42° 5° (1989) 73° (1966) 0.12" 0.2"
Dec 10 26° 42° -9° (1977) 69° (1971) 0.13" 0.3"
Dec 11 25° 42° -9° (1958) 63° (1971) 0.13" 0.3"
Dec 12 25° 41° -5° (1988) 66° (1979) 0.13" 0.3"
Dec 13 25° 41° -1° (1988) 64° (1927) 0.11" 0.3"
Dec 14 24° 41° -1° (1937) 64° (1927) 0.12" 0.3"
Dec 15 24° 40° -7° (1943) 72° (1971) 0.11" 0.3"
Dec 16 24° 40° -3° (1951) 66° (1971) 0.11" 0.4"
Dec 17 23° 40° -7° (1989) 66° (1984) 0.12" 0.3"
Dec 18 23° 40° -6° (1989) 67° (1967) 0.1" 0.3"
Dec 19 23° 39° -6° (1989) 68° (1939) 0.11" 0.4"
Dec 20 23° 39° -3° (1980) 65° (1949) 0.11" 0.3"
Dec 21 22° 39° -10° (1942) 69° (1967) 0.11" 0.4"
Dec 22 22° 39° -11° (1944) 69° (1949) 0.12" 0.3"
Dec 23 22° 39° -14° (1945) 64° (1957) 0.12" 0.4"
Dec 24 22° 38° -12° (1983) 69° (1964) 0.12" 0.3"
Dec 25 21° 38° -12° (1980) 68° (1964) 0.12" 0.4"
Dec 26 21° 38° -14° (1980) 69° (1964) 0.12" 0.4"
Dec 27 21° 38° -10° (1989) 63° (1936) 0.12" 0.3"
Dec 28 21° 38° -9° (1950) 68° (1940) 0.12" 0.4"
Dec 29 20° 38° -2° (1933) 71° (1982) 0.12" 0.3"
Dec 30 20° 38° -2° (1983) 67° (1990) 0.12" 0.4"
Dec 31 20° 37° -6° (1963) 68° (1972) 0.11" 0.3"
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