Mermet, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° 43° -20° (1977) 70° (1986) 3.37" 4.7"
February 29° 50° -10° (1996) 78° (1996) 3.39" 3.4"
March 38° 60° -3° (1978) 83° (1986) 4.6" 1.7"
April 46° 71° 21° (1990) 89° (1987) 4.74" 0.2"
May 55° 79° 29° (1976) 93° (2006) 5.16" 0"
June 63° 87° 39° (1972) 100° (1988) 4.1" 0"
July 67° 90° 46° (1971) 101° (1999) 3.75" 0"
August 65° 90° 46° (1986) 103° (2007) 3.6" 0"
September 58° 84° 32° (1983) 100° (1999) 3.26" 0"
October 47° 73° 17° (1981) 93° (2007) 3.16" 0"
November 39° 59° 6° (1976) 83° (2000) 4.71" 0.1"
December 29° 47° -14° (1989) 77° (1982) 4.4" 1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 26° 43° -4° (1968) 66° (1985) 0.12" NA
Jan 2 25° 43° 2° (1977) 69° (2000) 0.12" NA
Jan 3 25° 43° 0° (1979) 67° (2004) 0.12" NA
Jan 4 25° 43° 4° (1969) 68° (2004) 0.12" NA
Jan 5 25° 43° 2° (1995) 66° (1997) 0.11" NA
Jan 6 25° 43° 5° (1970) 64° (1998) 0.11" NA
Jan 7 25° 43° -4° (1968) 65° (1998) 0.11" NA
Jan 8 25° 43° -5° (1970) 64° (2006) 0.11" NA
Jan 9 25° 42° -8° (1976) 63° (2006) 0.11" NA
Jan 10 25° 42° -12° (1982) 61° (1975) 0.11" NA
Jan 11 25° 42° -13° (1977) 66° (2005) 0.11" NA
Jan 12 25° 42° -4° (1977) 67° (1995) 0.11" NA
Jan 13 24° 42° -1° (1997) 68° (1995) 0.11" NA
Jan 14 24° 42° 0° (1997) 66° (1995) 0.11" NA
Jan 15 24° 42° -6° (1972) 63° (1990) 0.11" NA
Jan 16 24° 43° -10° (1972) 67° (1990) 0.11" NA
Jan 17 24° 43° -20° (1977) 67° (1996) 0.11" NA
Jan 18 24° 43° -2° (1977) 66° (1974) 0.1" NA
Jan 19 25° 43° -16° (1994) 65° (1974) 0.1" NA
Jan 20 25° 43° -15° (1985) 65° (1999) 0.1" NA
Jan 21 25° 43° -17° (1984) 70° (1986) 0.1" NA
Jan 22 25° 43° -6° (1970) 69° (1999) 0.1" NA
Jan 23 25° 43° 3° (1978) 64° (1993) 0.1" NA
Jan 24 25° 43° -9° (2003) 68° (1972) 0.1" NA
Jan 25 25° 44° 10° (1979) 68° (1972) 0.1" NA
Jan 26 25° 44° -2° (1978) 63° (1981) 0.11" NA
Jan 27 25° 44° 0° (1986) 64° (1999) 0.11" NA
Jan 28 25° 44° 5° (1977) 69° (1970) 0.11" NA
Jan 29 25° 45° -5° (1977) 68° (1970) 0.11" NA
Jan 30 26° 45° -1° (1978) 68° (2002) 0.11" NA
Jan 31 26° 45° 1° (1977) 65° (2002) 0.11" NA
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