Manlius, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 28° -27° (1985) 73° (1942) 1.31" NA
February 17° 33° -26° (1905) 70° (2000) 1.35" NA
March 28° 46° -13° (1962) 87° (1986) 2.65" NA
April 39° 59° 6° (1982) 93° (1986) 3.49" NA
May 51° 71° 24° (2005) 105° (1934) 4.43" NA
June 60° 81° 37° (1945) 106° (1934) 4.52" NA
July 64° 83° 44° (1904) 111° (1936) 3.61" NA
August 61° 81° 36° (1923) 105° (1936) 4.36" NA
September 53° 75° 24° (1942) 101° (1953) 3.45" NA
October 41° 63° 10° (1925) 92° (1963) 2.8" NA
November 29° 46° -8° (1977) 81° (1950) 2.57" NA
December 17° 33° -23° (1924) 68° (1998) 2.03" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 58° 79° 39° (1967) 101° (1953) 0.13" NA
Sep 2 57° 78° 40° (1946) 101° (1913) 0.13" NA
Sep 3 57° 78° 40° (1974) 100° (1913) 0.13" NA
Sep 4 57° 78° 38° (1974) 98° (1925) 0.13" NA
Sep 5 56° 78° 40° (1988) 96° (1912) 0.13" NA
Sep 6 56° 77° 38° (1988) 98° (1922) 0.13" NA
Sep 7 56° 77° 38° (1986) 98° (1922) 0.13" NA
Sep 8 56° 77° 38° (1986) 99° (1922) 0.12" NA
Sep 9 55° 76° 41° (1924) 97° (1983) 0.12" NA
Sep 10 55° 76° 40° (1917) 95° (1983) 0.12" NA
Sep 11 55° 76° 36° (1917) 95° (1931) 0.12" NA
Sep 12 54° 76° 37° (1975) 96° (2000) 0.12" NA
Sep 13 54° 75° 35° (1953) 98° (1939) 0.12" NA
Sep 14 53° 75° 32° (1923) 98° (1939) 0.12" NA
Sep 15 53° 75° 38° (1904) 100° (1939) 0.12" NA
Sep 16 53° 74° 33° (1984) 94° (1906) 0.11" NA
Sep 17 52° 74° 36° (1943) 93° (1906) 0.11" NA
Sep 18 52° 74° 32° (1916) 92° (1954) 0.11" NA
Sep 19 52° 74° 34° (1991) 92° (1925) 0.11" NA
Sep 20 51° 73° 29° (1991) 92° (1908) 0.11" NA
Sep 21 51° 73° 34° (1927) 92° (1940) 0.11" NA
Sep 22 51° 73° 30° (1974) 90° (1937) 0.11" NA
Sep 23 50° 72° 30° (1983) 92° (1906) 0.11" NA
Sep 24 50° 72° 29° (1989) 90° (1935) 0.1" NA
Sep 25 49° 72° 29° (1942) 91° (1920) 0.1" NA
Sep 26 49° 71° 29° (1926) 88° (1956) 0.1" NA
Sep 27 49° 71° 29° (1942) 91° (1905) 0.1" NA
Sep 28 48° 71° 24° (1942) 91° (1952) 0.1" NA
Sep 29 48° 70° 29° (1949) 96° (1953) 0.1" NA
Sep 30 47° 70° 30° (1984) 91° (1953) 0.1" NA
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