Raritan, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 15° 33° -23° (1982) 70° (1950) 1.49" 7"
February 19° 38° -30° (1905) 76° (1930) 1.83" 5.5"
March 29° 50° -13° (1960) 88° (1910) 2.66" 3.8"
April 41° 63° 9° (1975) 94° (1930) 3.9" 1.1"
May 51° 73° 26° (1906) 105° (1934) 4.8" 0"
June 61° 82° 37° (1903) 108° (1934) 4.75" 0"
July 65° 86° 42° (1975) 110° (1936) 4.64" 0"
August 63° 85° 36° (1915) 113° (1934) 3.73" 0"
September 53° 77° 25° (1942) 103° (1913) 3.79" 0"
October 42° 65° 1° (1925) 96° (2006) 3.09" 0.1"
November 31° 51° -3° (1929) 83° (1950) 2.94" 1.8"
December 19° 37° -26° (1924) 72° (1998) 2.28" 5.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 60° 82° 40° (1949) 103° (1913) 0.12" NA
Sep 2 59° 82° 42° (1946) 102° (1913) 0.13" NA
Sep 3 59° 82° 42° (1952) 102° (1913) 0.12" NA
Sep 4 59° 81° 37° (1974) 100° (1925) 0.13" NA
Sep 5 58° 81° 42° (1962) 100° (1925) 0.13" NA
Sep 6 58° 81° 39° (1988) 102° (1925) 0.13" NA
Sep 7 57° 81° 39° (1956) 100° (1922) 0.13" NA
Sep 8 57° 80° 38° (1988) 99° (1912) 0.13" NA
Sep 9 57° 80° 40° (1943) 99° (1912) 0.12" NA
Sep 10 56° 80° 36° (1976) 97° (1983) 0.13" NA
Sep 11 56° 79° 34° (1917) 97° (1933) 0.13" NA
Sep 12 55° 79° 35° (1940) 98° (1939) 0.12" NA
Sep 13 55° 78° 31° (1902) 98° (1939) 0.12" NA
Sep 14 54° 78° 34° (1923) 101° (1939) 0.13" NA
Sep 15 54° 78° 35° (1904) 100° (1939) 0.12" NA
Sep 16 53° 77° 34° (2007) 96° (1906) 0.12" NA
Sep 17 53° 77° 37° (1937) 97° (1927) 0.13" NA
Sep 18 52° 76° 32° (1916) 94° (1953) 0.12" NA
Sep 19 52° 76° 35° (1938) 94° (1940) 0.13" NA
Sep 20 51° 76° 32° (1918) 95° (1940) 0.14" NA
Sep 21 51° 75° 32° (1918) 94° (1908) 0.13" NA
Sep 22 50° 75° 30° (1913) 94° (1930) 0.14" NA
Sep 23 50° 74° 29° (1974) 92° (1988) 0.14" NA
Sep 24 49° 74° 31° (1995) 92° (1933) 0.13" NA
Sep 25 49° 74° 32° (1907) 91° (1908) 0.13" NA
Sep 26 49° 73° 29° (1928) 90° (1901) 0.12" NA
Sep 27 48° 73° 32° (1918) 92° (1905) 0.12" NA
Sep 28 48° 72° 25° (1942) 96° (1953) 0.12" NA
Sep 29 47° 72° 29° (1984) 100° (1953) 0.12" NA
Sep 30 47° 72° 28° (1912) 91° (1933) 0.11" NA
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