Arnold, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 15° 34° -24° (1927) 75° (1950) 1.35" 6.6"
February 19° 40° -28° (1934) 80° (1932) 1.69" 6.5"
March 29° 52° -14° (1948) 91° (1907) 3.18" 2.3"
April 39° 64° 10° (1920) 94° (1930) 3.77" 0.4"
May 49° 74° 26° (1966) 103° (1934) 4.86" 0"
June 59° 83° 36° (1993) 107° (1931) 4.36" 0"
July 63° 87° 43° (1930) 114° (1954) 3.85" 0"
August 60° 85° 39° (1986) 112° (1934) 3.35" 0"
September 52° 79° 25° (1942) 103° (1913) 3.46" 0"
October 41° 68° 9° (1925) 95° (1922) 2.61" 0"
November 31° 52° -5° (1929) 84° (1937) 3.45" 1.2"
December 20° 39° -24° (1944) 74° (1998) 2.54" 5.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 57° 83° 40° (1967) 103° (1913) 0.12" NA
Sep 2 56° 83° 43° (1987) 101° (1913) 0.12" NA
Sep 3 56° 82° 40° (1952) 103° (1913) 0.12" NA
Sep 4 56° 82° 40° (1974) 101° (1925) 0.12" NA
Sep 5 55° 82° 40° (1974) 101° (1925) 0.12" NA
Sep 6 55° 82° 39° (1988) 101° (1925) 0.12" NA
Sep 7 55° 82° 38° (1988) 100° (1922) 0.12" NA
Sep 8 54° 81° 35° (1986) 99° (1922) 0.12" NA
Sep 9 54° 81° 35° (1986) 101° (1925) 0.12" NA
Sep 10 54° 81° 40° (1969) 98° (1933) 0.12" NA
Sep 11 53° 81° 35° (1917) 100° (1936) 0.12" NA
Sep 12 53° 81° 35° (1940) 97° (1939) 0.12" NA
Sep 13 53° 80° 34° (1902) 99° (1939) 0.12" NA
Sep 14 52° 80° 36° (1923) 100° (1939) 0.12" NA
Sep 15 52° 80° 35° (1996) 101° (1939) 0.12" NA
Sep 16 52° 79° 33° (1916) 97° (1927) 0.12" NA
Sep 17 51° 79° 32° (1937) 97° (1927) 0.12" NA
Sep 18 51° 79° 33° (1901) 95° (1925) 0.12" NA
Sep 19 51° 79° 35° (1901) 96° (1925) 0.12" NA
Sep 20 50° 78° 32° (1918) 96° (1931) 0.12" NA
Sep 21 50° 78° 31° (1991) 95° (1931) 0.11" NA
Sep 22 50° 78° 32° (1913) 96° (1956) 0.11" NA
Sep 23 49° 77° 29° (1995) 94° (1937) 0.11" NA
Sep 24 49° 77° 29° (1989) 94° (1935) 0.11" NA
Sep 25 49° 77° 30° (1995) 93° (2007) 0.11" NA
Sep 26 48° 76° 28° (1928) 91° (1920) 0.11" NA
Sep 27 48° 76° 30° (1940) 91° (1905) 0.1" NA
Sep 28 47° 75° 25° (1942) 94° (1939) 0.1" NA
Sep 29 47° 75° 32° (1908) 100° (1953) 0.1" NA
Sep 30 47° 75° 31° (1949) 93° (1922) 0.1" NA
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