Percy, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 38° -20° (1930) 77° (1943) 2.43" 5.5"
February 25° 44° -17° (1905) 82° (1932) 2.53" 5.1"
March 33° 55° -6° (1960) 90° (1929) 4.06" 2.4"
April 43° 66° 20° (1904) 94° (1930) 4.1" 0.5"
May 53° 75° 28° (1903) 99° (1934) 4.51" 0"
June 62° 84° 40° (1917) 107° (1931) 3.75" 0"
July 67° 88° 13° (2005) 114° (1936) 4.19" 0"
August 64° 87° 41° (1994) 112° (1930) 3.31" 0"
September 56° 80° 30° (1928) 105° (1925) 3.08" 0"
October 45° 69° 19° (1908) 96° (1953) 3.26" 0"
November 35° 54° -4° (1929) 85° (1989) 4.21" 0.9"
December 25° 42° -17° (1901) 76° (1970) 3.31" 3.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 48° 71° 28° (1903) 91° (1930) 0.14" NA
May 2 48° 71° 31° (1978) 91° (1952) 0.14" NA
May 3 49° 71° 29° (1976) 91° (1915) 0.14" NA
May 4 49° 71° 32° (1903) 91° (1952) 0.15" NA
May 5 49° 72° 34° (1929) 95° (1952) 0.15" NA
May 6 49° 72° 34° (1968) 92° (1940) 0.15" NA
May 7 50° 72° 32° (1906) 92° (1934) 0.15" NA
May 8 50° 73° 34° (1976) 91° (1930) 0.15" NA
May 9 50° 73° 35° (1960) 92° (1934) 0.15" NA
May 10 51° 73° 29° (1966) 95° (1916) 0.15" NA
May 11 51° 74° 35° (1907) 89° (1914) 0.15" NA
May 12 51° 74° 34° (1960) 89° (1935) 0.15" NA
May 13 52° 74° 30° (2006) 94° (1915) 0.15" NA
May 14 52° 75° 33° (2006) 92° (1932) 0.15" NA
May 15 52° 75° 38° (1959) 93° (1915) 0.15" NA
May 16 53° 75° 35° (1997) 91° (1944) 0.15" NA
May 17 53° 76° 38° (1997) 92° (1962) 0.15" NA
May 18 53° 76° 35° (2002) 92° (1911) 0.15" NA
May 19 54° 76° 35° (2007) 93° (1987) 0.15" NA
May 20 54° 77° 38° (2002) 93° (1902) 0.15" NA
May 21 54° 77° 38° (1929) 94° (1925) 0.15" NA
May 22 55° 77° 39° (2002) 96° (1925) 0.14" NA
May 23 55° 78° 39° (1917) 93° (1925) 0.14" NA
May 24 55° 78° 40° (1968) 94° (1911) 0.14" NA
May 25 56° 78° 33° (1925) 97° (1911) 0.14" NA
May 26 56° 78° 38° (1925) 98° (1953) 0.14" NA
May 27 56° 79° 36° (1961) 97° (1953) 0.14" NA
May 28 57° 79° 37° (1907) 98° (1911) 0.14" NA
May 29 57° 79° 40° (1901) 96° (1926) 0.14" NA
May 30 57° 80° 41° (1947) 99° (1934) 0.14" NA
May 31 58° 80° 40° (1972) 98° (1934) 0.13" NA
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