Annawan, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 28° -26° (1999) 65° (1990) 1.55" NA
February 16° 34° -23° (1996) 70° (1954) 1.41" NA
March 26° 46° -11° (1978) 85° (1986) 2.49" NA
April 37° 60° -2° (1982) 91° (2002) 3.48" NA
May 48° 71° 22° (2005) 93° (1967) 3.53" NA
June 59° 80° 38° (1988) 101° (1971) 4.46" NA
July 62° 84° 42° (1983) 104° (1983) 3.98" NA
August 60° 82° 38° (1986) 103° (1953) 4.14" NA
September 51° 75° 26° (1974) 102° (1953) 3.04" NA
October 39° 63° 17° (1988) 91° (1954) 2.57" NA
November 29° 47° -4° (1959) 79° (2000) 2.74" NA
December 17° 33° -24° (1983) 67° (1998) 2.37" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 23° 39° 9° (1976) 62° (1970) 0.09" NA
Dec 2 22° 39° 3° (1976) 65° (1982) 0.09" NA
Dec 3 22° 38° -5° (1976) 65° (1951) 0.09" NA
Dec 4 21° 38° 2° (2006) 65° (1998) 0.09" NA
Dec 5 21° 37° -5° (2006) 67° (1998) 0.09" NA
Dec 6 21° 37° -6° (1977) 67° (1951) 0.08" NA
Dec 7 20° 36° -7° (1976) 66° (1951) 0.08" NA
Dec 8 20° 36° -6° (2006) 60° (1966) 0.08" NA
Dec 9 19° 35° -7° (2006) 56° (1952) 0.08" NA
Dec 10 19° 35° -10° (1977) 56° (1965) 0.08" NA
Dec 11 19° 35° -10° (1972) 63° (1949) 0.08" NA
Dec 12 18° 34° -8° (1962) 56° (1965) 0.08" NA
Dec 13 18° 34° -6° (2000) 55° (1948) 0.08" NA
Dec 14 17° 34° -9° (1985) 62° (1975) 0.08" NA
Dec 15 17° 33° -11° (1963) 67° (1975) 0.08" NA
Dec 16 17° 33° -16° (1951) 57° (1984) 0.08" NA
Dec 17 16° 33° -8° (1953) 57° (1984) 0.08" NA
Dec 18 16° 32° -13° (1985) 56° (1962) 0.08" NA
Dec 19 16° 32° -19° (1983) 58° (2002) 0.07" NA
Dec 20 15° 32° -18° (1985) 61° (1949) 0.07" NA
Dec 21 15° 31° -16° (1963) 53° (1988) 0.07" NA
Dec 22 15° 31° -12° (1983) 56° (1957) 0.07" NA
Dec 23 14° 31° -13° (1983) 57° (1965) 0.07" NA
Dec 24 14° 30° -24° (1983) 61° (1982) 0.07" NA
Dec 25 14° 30° -19° (1983) 60° (1982) 0.07" NA
Dec 26 13° 30° -15° (2000) 56° (1982) 0.07" NA
Dec 27 13° 30° -12° (1950) 57° (1959) 0.07" NA
Dec 28 13° 30° -14° (1961) 61° (1982) 0.07" NA
Dec 29 12° 29° -7° (1961) 67° (1984) 0.06" NA
Dec 30 12° 29° -9° (1983) 56° (1965) 0.06" NA
Dec 31 12° 29° -13° (1968) 61° (2002) 0.06" NA
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