Astoria, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 15° 32° -21° (1985) 74° (1909) 1.55" NA
February 20° 38° -26° (1905) 78° (1972) 1.89" NA
March 30° 50° -11° (1960) 90° (1907) 3.05" NA
April 41° 63° 9° (1920) 94° (1930) 3.89" NA
May 51° 73° 21° (2002) 105° (1934) 5.14" NA
June 61° 82° 39° (1903) 104° (1934) 3.92" NA
July 65° 87° 46° (1975) 113° (1936) 3.87" NA
August 63° 84° 41° (1934) 111° (1934) 3.54" NA
September 54° 78° 26° (1942) 103° (1913) 3.63" NA
October 43° 66° 4° (1925) 93° (2006) 3.25" NA
November 31° 50° -8° (1964) 84° (1950) 3.16" NA
December 20° 37° -22° (1924) 76° (1970) 2.43" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 46° 68° 30° (1903) 90° (1952) 0.16" NA
May 2 47° 69° 30° (1961) 90° (1959) 0.16" NA
May 3 47° 69° 29° (2002) 91° (1959) 0.16" NA
May 4 47° 69° 30° (1907) 91° (1952) 0.16" NA
May 5 48° 69° 32° (1917) 93° (1952) 0.16" NA
May 6 48° 70° 32° (1944) 92° (1934) 0.17" NA
May 7 48° 70° 29° (1931) 88° (1916) 0.17" NA
May 8 49° 70° 34° (1976) 90° (1963) 0.17" NA
May 9 49° 71° 31° (1966) 93° (1934) 0.17" NA
May 10 49° 71° 26° (1966) 92° (1928) 0.17" NA
May 11 49° 72° 32° (1907) 88° (1956) 0.17" NA
May 12 50° 72° 36° (1917) 92° (1956) 0.17" NA
May 13 50° 72° 36° (1938) 92° (1956) 0.17" NA
May 14 51° 72° 33° (2000) 94° (1932) 0.17" NA
May 15 51° 73° 34° (2002) 90° (1911) 0.17" NA
May 16 51° 73° 34° (1959) 91° (1962) 0.17" NA
May 17 52° 73° 38° (1935) 91° (1962) 0.17" NA
May 18 52° 74° 21° (2002) 93° (1951) 0.17" NA
May 19 52° 74° 28° (2002) 92° (1934) 0.17" NA
May 20 53° 74° 34° (2002) 92° (1934) 0.17" NA
May 21 53° 75° 22° (2002) 94° (1934) 0.17" NA
May 22 53° 75° 34° (1963) 93° (1975) 0.17" NA
May 23 54° 75° 36° (1917) 91° (1921) 0.17" NA
May 24 54° 76° 37° (1935) 94° (1921) 0.17" NA
May 25 54° 76° 32° (1925) 93° (1967) 0.16" NA
May 26 55° 76° 36° (1961) 94° (1926) 0.16" NA
May 27 55° 77° 34° (1971) 92° (1978) 0.16" NA
May 28 55° 77° 37° (1965) 92° (1941) 0.16" NA
May 29 56° 77° 38° (1947) 98° (1934) 0.16" NA
May 30 56° 77° 36° (1947) 99° (1934) 0.16" NA
May 31 56° 78° 41° (1972) 105° (1934) 0.15" NA
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