Arthur, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 17° 33° -24° (1977) 70° (1952) 2.1" 6.1"
February 21° 38° -19° (1951) 73° (1996) 2.29" 4.4"
March 31° 50° -10° (1960) 86° (1981) 2.81" 2"
April 42° 63° 15° (1990) 90° (1987) 4.15" 0.1"
May 53° 74° 26° (1966) 95° (1998) 4.18" 0"
June 63° 83° 39° (2003) 105° (1954) 4.44" 0"
July 66° 86° 45° (1963) 113° (1954) 4.76" 0"
August 63° 84° 42° (1967) 104° (1988) 3.26" 0"
September 55° 78° 30° (1967) 102° (1954) 3.01" 0"
October 43° 66° 18° (1962) 93° (1953) 3.25" 0"
November 33° 51° -7° (1950) 82° (1950) 3.85" 0.7"
December 22° 37° -26° (1989) 70° (1998) 2.94" 4.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 26° 42° 5° (1964) 70° (1970) 0.11" 0.1"
Dec 2 26° 42° 8° (1985) 68° (1982) 0.12" 0.1"
Dec 3 26° 41° 2° (1966) 68° (1970) 0.1" 0.1"
Dec 4 25° 41° 3° (1991) 70° (1998) 0.11" 0.1"
Dec 5 25° 40° 8° (1991) 69° (1956) 0.11" 0.1"
Dec 6 25° 40° -1° (1977) 68° (1980) 0.1" 0.1"
Dec 7 24° 40° -2° (1977) 67° (1980) 0.11" 0.2"
Dec 8 24° 39° 5° (2006) 66° (1991) 0.11" 0.1"
Dec 9 24° 39° -5° (1958) 63° (1952) 0.1" 0.1"
Dec 10 23° 38° -6° (1977) 65° (1971) 0.1" 0.1"
Dec 11 23° 38° -3° (1962) 64° (1949) 0.1" 0.2"
Dec 12 23° 38° -10° (1962) 64° (1949) 0.1" 0.1"
Dec 13 22° 37° -5° (1962) 66° (1975) 0.09" 0.2"
Dec 14 22° 37° -5° (1963) 66° (1975) 0.09" 0.2"
Dec 15 22° 37° -10° (1989) 70° (1948) 0.09" 0.1"
Dec 16 22° 36° -14° (1951) 67° (1984) 0.09" 0.2"
Dec 17 21° 36° -14° (1989) 62° (1984) 0.09" 0.2"
Dec 18 21° 36° -10° (1950) 62° (1962) 0.09" 0.1"
Dec 19 21° 36° -9° (1963) 59° (1988) 0.08" 0.2"
Dec 20 21° 35° -16° (1989) 66° (1988) 0.08" 0.2"
Dec 21 20° 35° -15° (1989) 63° (1967) 0.09" 0.1"
Dec 22 20° 35° -26° (1989) 57° (1957) 0.09" 0.2"
Dec 23 20° 35° -23° (1989) 61° (1982) 0.1" 0.1"
Dec 24 20° 34° -12° (1989) 61° (1982) 0.09" 0.2"
Dec 25 20° 34° -3° (1985) 60° (1982) 0.09" 0.2"
Dec 26 20° 34° -6° (1985) 58° (1982) 0.09" 0.2"
Dec 27 19° 34° -7° (1950) 63° (1971) 0.08" 0.2"
Dec 28 19° 34° -3° (1950) 69° (1984) 0.08" 0.2"
Dec 29 19° 34° -2° (1981) 64° (1984) 0.09" 0.1"
Dec 30 19° 34° -2° (1963) 64° (1965) 0.08" 0.2"
Dec 31 19° 33° -10° (1976) 64° (1951) 0.09" 0.2"
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