Arthur, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 18° 34° -24° (1977) 70° (1952) 2.29" NA
February 23° 41° -19° (1951) 73° (1996) 2.12" NA
March 33° 53° -10° (1960) 86° (1981) 3.14" NA
April 42° 66° 15° (1990) 90° (1987) 3.84" NA
May 53° 76° 26° (1966) 95° (1998) 3.96" NA
June 62° 85° 39° (2003) 105° (1954) 4.15" NA
July 66° 88° 45° (1963) 113° (1954) 4.64" NA
August 64° 86° 42° (1967) 104° (1988) 3.73" NA
September 56° 80° 30° (1967) 102° (1954) 3.14" NA
October 45° 68° 18° (1962) 93° (1953) 2.86" NA
November 35° 52° -7° (1950) 82° (1950) 3.74" NA
December 24° 39° -26° (1989) 70° (1998) 3.05" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 38° 60° 26° (1964) 85° (1981) 0.12" NA
Apr 2 38° 60° 20° (1961) 82° (1967) 0.12" NA
Apr 3 38° 60° 21° (1987) 81° (1981) 0.12" NA
Apr 4 39° 61° 22° (1954) 77° (1978) 0.12" NA
Apr 5 39° 61° 22° (1995) 85° (1988) 0.12" NA
Apr 6 39° 62° 20° (1982) 84° (1988) 0.12" NA
Apr 7 40° 62° 15° (1990) 83° (1954) 0.13" NA
Apr 8 40° 63° 19° (1972) 82° (1965) 0.13" NA
Apr 9 40° 63° 19° (1997) 87° (1967) 0.13" NA
Apr 10 40° 63° 21° (1960) 84° (1977) 0.13" NA
Apr 11 41° 64° 22° (1973) 84° (1977) 0.13" NA
Apr 12 41° 64° 21° (1990) 84° (1971) 0.13" NA
Apr 13 41° 65° 22° (1950) 83° (1977) 0.13" NA
Apr 14 42° 65° 20° (1962) 85° (1977) 0.13" NA
Apr 15 42° 65° 25° (1950) 84° (2006) 0.13" NA
Apr 16 42° 66° 24° (1962) 85° (1977) 0.13" NA
Apr 17 43° 66° 26° (1951) 87° (1977) 0.13" NA
Apr 18 43° 67° 25° (1990) 87° (1977) 0.13" NA
Apr 19 43° 67° 23° (1983) 86° (2004) 0.13" NA
Apr 20 44° 67° 25° (1983) 86° (1987) 0.13" NA
Apr 21 44° 68° 27° (1950) 88° (1987) 0.13" NA
Apr 22 44° 68° 28° (1986) 89° (1980) 0.13" NA
Apr 23 45° 68° 24° (1956) 87° (1980) 0.13" NA
Apr 24 45° 69° 26° (1956) 86° (1960) 0.13" NA
Apr 25 45° 69° 32° (1980) 88° (1954) 0.13" NA
Apr 26 46° 70° 30° (1976) 88° (1986) 0.13" NA
Apr 27 46° 70° 31° (1968) 86° (1981) 0.13" NA
Apr 28 47° 70° 31° (1992) 86° (1951) 0.13" NA
Apr 29 47° 71° 32° (1977) 90° (1987) 0.13" NA
Apr 30 47° 71° 32° (1958) 88° (1987) 0.13" NA
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