Lockport, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 17° 31° -26° (1985) 65° (1997) 1.8" NA
February 21° 36° -20° (1979) 73° (2000) 1.79" NA
March 29° 47° -7° (2002) 86° (1986) 2.25" NA
April 39° 61° 11° (1982) 92° (1986) 3.49" NA
May 49° 71° 30° (2005) 93° (2006) 4.08" NA
June 60° 81° 35° (1985) 104° (1988) 3.88" NA
July 64° 84° 47° (1983) 103° (1995) 4.33" NA
August 63° 82° 39° (1986) 102° (1988) 4.16" NA
September 55° 76° 32° (1983) 97° (1978) 3.01" NA
October 43° 64° 17° (1976) 88° (2007) 2.84" NA
November 33° 49° -2° (1977) 78° (1978) 3.06" NA
December 21° 35° -20° (1983) 70° (1982) 2.2" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 17° 32° -14° (1977) 59° (2007) 0.06" NA
Jan 2 17° 32° -15° (1979) 52° (2004) 0.07" NA
Jan 3 17° 31° -15° (1979) 62° (2000) 0.06" NA
Jan 4 17° 31° -9° (2010) 59° (1998) 0.06" NA
Jan 5 17° 31° -17° (1999) 65° (1997) 0.07" NA
Jan 6 17° 31° -17° (1999) 55° (1998) 0.06" NA
Jan 7 17° 31° -14° (1988) 62° (2008) 0.06" NA
Jan 8 17° 31° -13° (1988) 65° (2008) 0.07" NA
Jan 9 17° 31° -11° (1976) 56° (2003) 0.06" NA
Jan 10 16° 31° -19° (1982) 56° (2002) 0.06" NA
Jan 11 16° 31° -22° (1982) 52° (1980) 0.06" NA
Jan 12 16° 31° -14° (1977) 54° (1980) 0.06" NA
Jan 13 16° 31° -10° (1997) 55° (2006) 0.06" NA
Jan 14 16° 31° -6° (1994) 46° (2001) 0.06" NA
Jan 15 16° 31° -20° (1979) 45° (1987) 0.06" NA
Jan 16 16° 31° -20° (2009) 52° (1990) 0.06" NA
Jan 17 16° 31° -20° (2009) 56° (1990) 0.06" NA
Jan 18 16° 31° -20° (1994) 59° (1996) 0.06" NA
Jan 19 16° 31° -21° (1994) 60° (1996) 0.06" NA
Jan 20 16° 31° -26° (1985) 57° (2006) 0.05" NA
Jan 21 16° 31° -26° (1985) 43° (1981) 0.06" NA
Jan 22 16° 31° -14° (1984) 55° (1986) 0.05" NA
Jan 23 17° 31° -4° (1978) 56° (2002) 0.05" NA
Jan 24 17° 32° -7° (2008) 51° (1990) 0.06" NA
Jan 25 17° 32° -7° (2008) 51° (1981) 0.05" NA
Jan 26 17° 32° -12° (1982) 52° (2002) 0.05" NA
Jan 27 17° 32° -12° (1982) 56° (2002) 0.05" NA
Jan 28 17° 32° -15° (1977) 61° (2002) 0.05" NA
Jan 29 17° 32° -15° (1977) 59° (2002) 0.05" NA
Jan 30 17° 32° -8° (1978) 51° (2006) 0.06" NA
Jan 31 17° 32° -9° (1996) 55° (1988) 0.05" NA
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