Altona, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 29° -23° (1985) 67° (1909) 1.52" 7.9"
February 19° 35° -28° (1905) 70° (1932) 1.54" 6.7"
March 29° 47° -12° (1962) 86° (1910) 2.79" 4.8"
April 39° 61° 9° (1920) 93° (1930) 3.93" 1.8"
May 51° 72° 22° (2005) 105° (1934) 3.94" 0"
June 60° 82° 36° (1913) 105° (1934) 4.39" 0"
July 64° 85° 44° (1947) 111° (1936) 3.98" 0"
August 62° 83° 38° (1915) 105° (1936) 4.32" 0"
September 53° 76° 25° (1942) 101° (1953) 3.57" 0"
October 42° 64° 9° (1925) 94° (1909) 2.73" 0.3"
November 30° 48° -7° (1977) 83° (1950) 2.91" 2.1"
December 18° 34° -26° (1924) 69° (1998) 2.27" 5.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 34° 55° 13° (1926) 84° (1946) 0.12" NA
Apr 2 34° 55° 18° (1961) 83° (1940) 0.12" NA
Apr 3 35° 56° 15° (1936) 82° (1956) 0.12" NA
Apr 4 35° 56° 11° (1975) 84° (1929) 0.12" NA
Apr 5 35° 56° 9° (1920) 91° (1929) 0.12" NA
Apr 6 36° 57° 11° (1982) 82° (1929) 0.13" NA
Apr 7 36° 57° 11° (1982) 82° (1954) 0.13" NA
Apr 8 36° 58° 17° (1972) 87° (1931) 0.13" NA
Apr 9 37° 58° 18° (1996) 81° (2001) 0.13" NA
Apr 10 37° 59° 18° (1909) 93° (1930) 0.13" NA
Apr 11 37° 59° 22° (1918) 92° (1930) 0.13" NA
Apr 12 38° 59° 18° (1940) 87° (1930) 0.13" NA
Apr 13 38° 60° 18° (1950) 85° (1941) 0.13" NA
Apr 14 38° 60° 19° (1907) 82° (1931) 0.13" NA
Apr 15 39° 61° 18° (1928) 85° (2003) 0.13" NA
Apr 16 39° 61° 22° (1904) 88° (2002) 0.14" NA
Apr 17 40° 61° 22° (1907) 87° (2002) 0.14" NA
Apr 18 40° 62° 22° (1983) 86° (2004) 0.14" NA
Apr 19 40° 62° 22° (1953) 91° (2002) 0.14" NA
Apr 20 41° 63° 25° (1953) 86° (1936) 0.14" NA
Apr 21 41° 63° 24° (1904) 88° (1902) 0.14" NA
Apr 22 41° 63° 24° (1986) 86° (1925) 0.14" NA
Apr 23 42° 64° 23° (1927) 90° (1980) 0.14" NA
Apr 24 42° 64° 16° (1910) 87° (1948) 0.13" NA
Apr 25 43° 64° 24° (1934) 86° (1954) 0.13" NA
Apr 26 43° 65° 27° (2006) 90° (1986) 0.13" NA
Apr 27 43° 65° 26° (1946) 88° (1986) 0.13" NA
Apr 28 44° 66° 29° (1950) 87° (1970) 0.13" NA
Apr 29 44° 66° 26° (1958) 89° (1952) 0.13" NA
Apr 30 45° 66° 28° (1908) 90° (1910) 0.13" NA
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