Alta, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -10° -1° -32.8° (1884) 21.7° (1909) 1.5" 8.2"
February -7° -32.2° (1905) 23.3° (1932) 1.67" 5.6"
March -1° -23.9° (1943) 31.1° (1907) 2.83" 3.2"
April 17° -10.6° (1982) 33.3° (1986) 3.56" 1"
May 11° 23° -3.9° (1966) 40° (1934) 4.17" 0"
June 16° 28° 3.9° (1993) 40.6° (1988) 3.84" 0"
July 18° 30° 7.8° (1911) 45° (1936) 4.02" 0"
August 17° 29° 5° (1986) 41.1° (1936) 3.16" 0"
September 12° 25° -4.4° (1942) 40° (1899) 3.12" 0"
October 18° -13.9° (1925) 33.9° (2006) 2.77" 0"
November -1° -18.9° (1977) 27.2° (1950) 2.99" 2.1"
December -7° -31.1° (1924) 21.7° (1982) 2.4" 7.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 8.9° 21.7° 0° (1920) 32° (1937) 0.09" NA
Oct 2 8.9° 21.7° -3° (2003) 33° (1922) 0.09" NA
Oct 3 8.3° 21.1° -1° (1987) 34° (2006) 0.09" NA
Oct 4 8.3° 21.1° -3° (1935) 32° (1922) 0.09" NA
Oct 5 7.8° 21.1° -1° (1980) 32° (1922) 0.09" NA
Oct 6 7.8° 20.6° -4° (1952) 32° (1963) 0.09" NA
Oct 7 7.8° 20.6° -2° (2000) 32° (2007) 0.09" NA
Oct 8 7.2° 20° -3° (1952) 31° (1938) 0.09" NA
Oct 9 7.2° 20° -3° (1915) 30° (1938) 0.09" NA
Oct 10 6.7° 19.4° -4° (1964) 31° (1938) 0.09" NA
Oct 11 6.7° 19.4° -5° (1906) 31° (1928) 0.09" NA
Oct 12 6.7° 18.9° -4° (1987) 30° (1890) 0.09" NA
Oct 13 6.1° 18.9° -6° (1917) 31° (1899) 0.09" NA
Oct 14 6.1° 18.3° -6° (1909) 32° (1897) 0.09" NA
Oct 15 6.1° 18.3° -5° (1937) 32° (1897) 0.09" NA
Oct 16 5.6° 18.3° -2° (1991) 29° (1950) 0.08" NA
Oct 17 5.6° 17.8° -3° (1948) 30° (1950) 0.08" NA
Oct 18 17.8° -6° (1948) 29° (1953) 0.09" NA
Oct 19 17.2° -7° (1972) 29° (1953) 0.09" NA
Oct 20 17.2° -6° (1960) 31° (2003) 0.09" NA
Oct 21 4.4° 16.7° -6° (1930) 30° (1979) 0.09" NA
Oct 22 4.4° 16.7° -6° (1976) 29° (1927) 0.09" NA
Oct 23 4.4° 16.1° -5° (1981) 29° (1899) 0.09" NA
Oct 24 3.9° 16.1° -6° (1981) 27° (1963) 0.09" NA
Oct 25 3.9° 15.6° -6° (1887) 27° (1939) 0.09" NA
Oct 26 3.9° 15.6° -7° (1962) 29° (1939) 0.09" NA
Oct 27 3.3° 15° -6° (1925) 30° (1927) 0.09" NA
Oct 28 3.3° 14.4° -10° (1925) 29° (1927) 0.09" NA
Oct 29 3.3° 14.4° -11° (1925) 28° (1922) 0.09" NA
Oct 30 2.8° 13.9° -14° (1925) 30° (1950) 0.09" NA
Oct 31 2.8° 13.9° -10° (1925) 29° (1950) 0.09" NA
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