Jefferson Hills, Pennsylvania
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 37° -19° (1994) 74° (1999) 2.59" NA
February 21° 39° -2° (2007) 76° (2000) 2.47" NA
March 29° 50° 2° (1996) 84° (1998) 3.24" NA
April 38° 62° 20° (1997) 90° (1990) 3.07" NA
May 48° 71° 22° (2006) 92° (2006) 4.04" NA
June 56° 80° 38° (1975) 96° (1999) 3.93" NA
July 62° 85° 37° (2005) 101° (1988) 3.9" NA
August 60° 83° 40° (2006) 97° (1988) 3.15" NA
September 53° 76° 35° (1991) 92° (2002) 3.13" NA
October 41° 64° 22° (1988) 88° (2007) 2.35" NA
November 33° 53° 13° (1991) 79° (2004) 3.05" NA
December 25° 42° 2° (1988) 74° (2006) 2.86" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 21° 38° 11° (1998) 59° (1993) 0.09" NA
Jan 2 21° 38° 10° (1998) 57° (2005) 0.09" NA
Jan 3 21° 38° 11° (2002) 68° (2000) 0.09" NA
Jan 4 21° 38° 3° (1999) 68° (2000) 0.09" NA
Jan 5 21° 38° 0° (1999) 69° (1997) 0.09" NA
Jan 6 21° 38° 1° (1988) 66° (1998) 0.09" NA
Jan 7 21° 38° 2° (1988) 60° (1998) 0.09" NA
Jan 8 20° 38° 0° (1988) 63° (1998) 0.09" NA
Jan 9 20° 38° 9° (1994) 63° (1998) 0.09" NA
Jan 10 20° 38° 0° (1988) 58° (2006) 0.09" NA
Jan 11 20° 38° -5° (1996) 56° (2000) 0.09" NA
Jan 12 20° 38° -3° (1996) 61° (2006) 0.08" NA
Jan 13 20° 37° 7° (1997) 65° (2005) 0.08" NA
Jan 14 20° 37° 8° (1988) 72° (2005) 0.08" NA
Jan 15 20° 37° 3° (1994) 67° (1995) 0.08" NA
Jan 16 20° 37° -6° (1994) 59° (1995) 0.08" NA
Jan 17 20° 37° -8° (1994) 58° (1991) 0.08" NA
Jan 18 19° 37° 1° (2003) 55° (1996) 0.08" NA
Jan 19 19° 37° -19° (1994) 64° (1996) 0.08" NA
Jan 20 19° 37° -16° (1994) 62° (1988) 0.08" NA
Jan 21 19° 37° -17° (1994) 58° (2006) 0.08" NA
Jan 22 19° 37° -17° (1994) 58° (2006) 0.08" NA
Jan 23 19° 37° -1° (2000) 68° (1999) 0.08" NA
Jan 24 19° 37° -1° (2005) 74° (1999) 0.08" NA
Jan 25 19° 37° -1° (2005) 58° (2002) 0.08" NA
Jan 26 19° 37° -2° (2007) 57° (1989) 0.08" NA
Jan 27 19° 37° 2° (2003) 60° (2002) 0.08" NA
Jan 28 19° 37° 5° (2005) 64° (2002) 0.08" NA
Jan 29 19° 37° 4° (2005) 66° (2002) 0.08" NA
Jan 30 19° 37° 5° (2000) 69° (2002) 0.08" NA
Jan 31 20° 37° 12° (1994) 64° (1988) 0.08" NA
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