Altona, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 30° -23° (1985) 67° (1909) 1.54" 7"
February 17° 35° -28° (1905) 70° (1932) 1.72" 5.2"
March 27° 48° -12° (1962) 86° (1910) 2.63" 2.4"
April 38° 62° 9° (1920) 93° (1930) 4.11" 0.7"
May 49° 72° 22° (2005) 105° (1934) 3.98" 0"
June 59° 82° 36° (1913) 105° (1934) 4.32" 0"
July 63° 85° 44° (1947) 111° (1936) 3.84" 0"
August 60° 83° 38° (1915) 105° (1936) 4.22" 0"
September 51° 76° 25° (1942) 101° (1953) 3.41" 0"
October 40° 64° 9° (1925) 94° (1909) 2.83" 0"
November 29° 48° -7° (1977) 83° (1950) 3.03" 1.3"
December 16° 34° -26° (1924) 69° (1998) 2.23" 4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 33° 56° 13° (1926) 84° (1946) 0.12" 0.1"
Apr 2 33° 56° 18° (1961) 83° (1940) 0.12" 0"
Apr 3 33° 57° 15° (1936) 82° (1956) 0.12" 0.1"
Apr 4 34° 57° 11° (1975) 84° (1929) 0.12" 0"
Apr 5 34° 57° 9° (1920) 91° (1929) 0.13" 0"
Apr 6 34° 58° 11° (1982) 82° (1929) 0.12" 0.1"
Apr 7 35° 58° 11° (1982) 82° (1954) 0.13" 0"
Apr 8 35° 59° 17° (1972) 87° (1931) 0.13" 0"
Apr 9 35° 59° 18° (1996) 81° (2001) 0.13" 0.1"
Apr 10 36° 60° 18° (1909) 93° (1930) 0.14" 0"
Apr 11 36° 60° 22° (1918) 92° (1930) 0.13" 0"
Apr 12 36° 60° 18° (1940) 87° (1930) 0.14" 0.1"
Apr 13 37° 61° 18° (1950) 85° (1941) 0.14" 0"
Apr 14 37° 61° 19° (1907) 85° (2006) 0.14" 0"
Apr 15 38° 62° 18° (1928) 85° (2003) 0.14" 0"
Apr 16 38° 62° 22° (1904) 88° (2002) 0.15" 0.1"
Apr 17 38° 62° 22° (1907) 87° (2002) 0.15" 0"
Apr 18 39° 63° 22° (1983) 86° (2004) 0.14" 0"
Apr 19 39° 63° 22° (1953) 91° (2002) 0.14" 0"
Apr 20 40° 64° 25° (1953) 86° (1936) 0.15" 0.1"
Apr 21 40° 64° 24° (1904) 88° (1902) 0.14" 0"
Apr 22 40° 64° 24° (1986) 86° (1925) 0.14" 0"
Apr 23 41° 65° 23° (1927) 90° (1980) 0.14" 0"
Apr 24 41° 65° 16° (1910) 87° (1948) 0.14" 0"
Apr 25 42° 66° 24° (1934) 86° (1954) 0.14" 0"
Apr 26 42° 66° 27° (2006) 90° (1986) 0.15" 0"
Apr 27 42° 66° 26° (1946) 88° (1986) 0.15" 0"
Apr 28 43° 67° 29° (1950) 87° (1970) 0.14" 0"
Apr 29 43° 67° 26° (1958) 89° (1952) 0.15" 0"
Apr 30 43° 67° 28° (1908) 90° (1910) 0.14" 0"
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