Winnebago, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 29° -27° (1982) 63° (1989) 1.37" 10.2"
February 18° 34° -25° (1933) 70° (2000) 1.47" 7.7"
March 28° 47° -11° (2002) 85° (1986) 2.32" 4.8"
April 38° 61° 5° (1982) 93° (1930) 3.35" 0.9"
May 48° 72° 24° (1966) 106° (1934) 4.02" 0"
June 59° 81° 35° (1945) 106° (1934) 4.65" 0"
July 63° 85° 43° (1967) 112° (1936) 3.95" 0"
August 61° 82° 35° (1915) 104° (1988) 4.59" 0"
September 52° 75° 24° (1942) 103° (1939) 3.35" 0"
October 41° 63° 7° (1925) 91° (1922) 2.67" 0.1"
November 30° 48° -10° (1977) 81° (1933) 2.58" 1.7"
December 18° 33° -24° (1983) 67° (2001) 1.98" 11.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 33° 55° 16° (1924) 84° (2010) 0.1" 0.1"
Apr 2 33° 55° 18° (1896) 80° (1963) 0.11" 0.1"
Apr 3 34° 55° 15° (1954) 80° (1956) 0.1" 0"
Apr 4 34° 56° 9° (1975) 84° (1929) 0.11" 0.1"
Apr 5 34° 56° 15° (1995) 82° (1988) 0.1" 0"
Apr 6 35° 57° 11° (1982) 86° (1929) 0.11" 0.1"
Apr 7 35° 57° 5° (1982) 85° (1893) 0.12" 0"
Apr 8 35° 58° 15° (1972) 85° (1931) 0.11" 0.1"
Apr 9 36° 58° 17° (1997) 77° (1934) 0.11" 0"
Apr 10 36° 59° 18° (1989) 93° (1930) 0.12" 0"
Apr 11 37° 59° 19° (1973) 88° (1930) 0.11" 0.1"
Apr 12 37° 59° 19° (1939) 84° (1941) 0.11" 0"
Apr 13 37° 60° 18° (1950) 83° (2006) 0.12" 0"
Apr 14 38° 60° 21° (1957) 85° (2003) 0.11" 0.1"
Apr 15 38° 61° 16° (1928) 87° (2002) 0.12" 0"
Apr 16 38° 61° 19° (1949) 86° (2002) 0.11" 0"
Apr 17 39° 61° 24° (1983) 86° (1977) 0.12" 0.1"
Apr 18 39° 62° 22° (1990) 91° (2002) 0.11" 0"
Apr 19 39° 62° 16° (1983) 87° (1985) 0.11" 0"
Apr 20 40° 63° 25° (1956) 89° (1987) 0.11" 0"
Apr 21 40° 63° 24° (1988) 86° (1985) 0.11" 0"
Apr 22 41° 64° 23° (1986) 91° (1980) 0.11" 0"
Apr 23 41° 64° 22° (1927) 86° (1925) 0.11" 0.1"
Apr 24 41° 64° 16° (1967) 88° (1915) 0.11" 0"
Apr 25 42° 65° 25° (1934) 90° (1986) 0.11" 0"
Apr 26 42° 65° 25° (1926) 90° (1986) 0.11" 0"
Apr 27 42° 65° 26° (1933) 88° (1915) 0.11" 0"
Apr 28 43° 66° 28° (1976) 86° (1952) 0.12" 0"
Apr 29 43° 66° 27° (1958) 90° (1915) 0.12" 0"
Apr 30 43° 67° 28° (1931) 91° (1942) 0.12" 0"
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