Sterling, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 29° -27° (1999) 65° (2004) 1.57" 11.2"
February 16° 34° -27° (1905) 71° (2000) 1.65" 5.8"
March 27° 46° -13° (2002) 87° (1986) 2.47" 4.1"
April 38° 60° 8° (1982) 93° (1986) 3.5" 0.7"
May 49° 71° 24° (2005) 105° (1934) 4.41" 0"
June 59° 79° 34° (1945) 106° (1934) 4.9" 0"
July 63° 83° 43° (1904) 110° (1936) 4.14" 0"
August 61° 81° 37° (1934) 103° (1988) 4.5" 0"
September 51° 75° 22° (1942) 102° (1939) 3.55" 0"
October 40° 62° 7° (1925) 93° (1963) 2.9" 0.1"
November 29° 47° -8° (1977) 81° (1933) 2.69" 1.4"
December 17° 33° -25° (1983) 68° (1998) 2.19" 6.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 13° 29° -13° (1977) 54° (2007) 0.05" 0.3"
Jan 2 13° 29° -19° (1979) 52° (1950) 0.06" 0.4"
Jan 3 13° 29° -18° (1979) 65° (2004) 0.05" 0.3"
Jan 4 12° 29° -24° (1919) 59° (1998) 0.06" 0.3"
Jan 5 12° 29° -27° (1999) 59° (1997) 0.05" 0.4"
Jan 6 12° 29° -27° (1999) 53° (1933) 0.05" 0.4"
Jan 7 12° 29° -20° (1912) 62° (2008) 0.06" 0.3"
Jan 8 12° 29° -20° (1942) 62° (2008) 0.05" 0.4"
Jan 9 12° 29° -15° (1979) 59° (1939) 0.06" 0.4"
Jan 10 12° 29° -22° (1982) 57° (1975) 0.05" 0.4"
Jan 11 12° 29° -24° (1982) 51° (1980) 0.06" 0.3"
Jan 12 12° 29° -19° (1974) 57° (1960) 0.05" 0.4"
Jan 13 12° 29° -18° (1912) 54° (1960) 0.05" 0.4"
Jan 14 11° 29° -20° (1917) 58° (1928) 0.05" 0.4"
Jan 15 11° 29° -22° (1994) 56° (1949) 0.05" 0.4"
Jan 16 11° 29° -32° (2009) 54° (1933) 0.05" 0.4"
Jan 17 11° 29° -32° (2009) 55° (1990) 0.05" 0.4"
Jan 18 11° 29° -23° (1930) 56° (1996) 0.05" 0.4"
Jan 19 11° 29° -24° (1994) 56° (1996) 0.05" 0.4"
Jan 20 11° 29° -26° (1985) 60° (1906) 0.05" 0.3"
Jan 21 11° 29° -27° (1985) 61° (1906) 0.05" 0.4"
Jan 22 11° 29° -25° (1930) 57° (1964) 0.05" 0.3"
Jan 23 11° 29° -24° (1936) 57° (1909) 0.04" 0.4"
Jan 24 11° 29° -19° (1936) 63° (1909) 0.05" 0.4"
Jan 25 11° 29° -18° (1936) 60° (1950) 0.05" 0.3"
Jan 26 11° 29° -22° (1982) 60° (1944) 0.04" 0.4"
Jan 27 11° 29° -25° (1982) 63° (1944) 0.05" 0.3"
Jan 28 11° 29° -22° (1963) 60° (2002) 0.05" 0.3"
Jan 29 12° 29° -20° (1915) 54° (2002) 0.04" 0.4"
Jan 30 12° 30° -20° (1918) 54° (1929) 0.05" 0.3"
Jan 31 12° 30° -17° (1965) 54° (1988) 0.05" 0.3"
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