Casey, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 36° -27° (1994) 71° (1909) 2.49" 7.5"
February 25° 42° -23° (1905) 75° (1930) 2.6" 4.4"
March 34° 53° -14° (1960) 89° (1929) 2.89" 1.8"
April 44° 66° 17° (1982) 92° (1930) 4.29" 0.2"
May 53° 75° 26° (1925) 101° (1934) 4.62" 0"
June 62° 84° 35° (1945) 108° (1934) 4.35" 0"
July 66° 87° 45° (1947) 110° (1936) 4.47" 0"
August 64° 85° 39° (1915) 107° (1918) 2.93" 0"
September 56° 79° 26° (1942) 104° (1925) 3.24" 0"
October 46° 67° 11° (1925) 96° (1912) 3.76" 0"
November 36° 53° -2° (1929) 84° (1933) 3.97" 0.7"
December 25° 40° -20° (1989) 73° (1948) 3.15" 2.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 49° 71° 28° (1903) 90° (1901) 0.15" 0"
May 2 49° 71° 32° (1907) 90° (1901) 0.16" 0"
May 3 50° 72° 29° (2005) 88° (1902) 0.16" 0"
May 4 50° 72° 29° (1926) 90° (1949) 0.15" 0"
May 5 50° 72° 32° (1917) 92° (1952) 0.16" 0"
May 6 50° 72° 29° (1944) 93° (1949) 0.15" 0"
May 7 51° 73° 30° (1906) 90° (1916) 0.16" 0"
May 8 51° 73° 30° (1928) 88° (1930) 0.15" 0"
May 9 51° 73° 29° (1947) 92° (1934) 0.15" 0"
May 10 52° 73° 29° (1966) 92° (1928) 0.15" 0"
May 11 52° 74° 32° (1907) 89° (2005) 0.16" 0"
May 12 52° 74° 30° (1981) 90° (1902) 0.16" 0"
May 13 52° 74° 32° (1928) 89° (1902) 0.16" 0"
May 14 53° 74° 32° (1910) 91° (1916) 0.16" 0"
May 15 53° 75° 33° (1920) 92° (2001) 0.16" 0"
May 16 53° 75° 32° (1959) 94° (2001) 0.14" 0"
May 17 54° 75° 39° (1929) 92° (1962) 0.15" 0"
May 18 54° 76° 32° (1925) 92° (1934) 0.15" 0"
May 19 54° 76° 34° (2002) 92° (1934) 0.14" 0"
May 20 54° 76° 34° (1956) 93° (1934) 0.15" 0"
May 21 55° 76° 33° (2002) 95° (1925) 0.14" 0"
May 22 55° 77° 35° (1924) 96° (1925) 0.15" 0"
May 23 55° 77° 37° (1931) 94° (1925) 0.14" 0"
May 24 56° 77° 34° (1956) 95° (1921) 0.14" 0"
May 25 56° 78° 26° (1925) 94° (1911) 0.14" 0"
May 26 56° 78° 31° (1925) 97° (1911) 0.14" 0"
May 27 57° 78° 36° (1961) 97° (1911) 0.14" 0"
May 28 57° 78° 35° (1907) 97° (1911) 0.13" 0"
May 29 57° 79° 38° (1901) 96° (1934) 0.15" 0"
May 30 57° 79° 36° (1924) 97° (1934) 0.14" 0"
May 31 58° 79° 36° (1930) 101° (1934) 0.14" 0"
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