Royal, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 33° -27° (1985) 68° (1950) 1.72" NA
February 19° 38° -19° (1996) 72° (2000) 1.78" NA
March 29° 50° -13° (1980) 85° (1986) 3.06" NA
April 39° 63° 10° (1982) 90° (1986) 3.64" NA
May 50° 75° 26° (2002) 97° (1991) 4.21" NA
June 60° 84° 38° (1993) 104° (1988) 3.88" NA
July 64° 87° 43° (2001) 109° (1954) 4.39" NA
August 61° 85° 38° (1986) 102° (1988) 4.35" NA
September 53° 79° 29° (2001) 101° (1953) 2.95" NA
October 41° 67° 21° (2000) 93° (2007) 2.91" NA
November 31° 51° -5° (1950) 81° (1968) 3.17" NA
December 20° 38° -22° (1989) 70° (1998) 2.69" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Feb 1 15° 34° -12° (1996) 60° (1968) 0.05" NA
Feb 2 15° 34° -12° (1996) 55° (1968) 0.05" NA
Feb 3 15° 35° -19° (1996) 51° (1992) 0.05" NA
Feb 4 15° 35° -15° (1996) 60° (1992) 0.05" NA
Feb 5 16° 35° -14° (1979) 54° (2005) 0.05" NA
Feb 6 16° 35° -12° (1979) 58° (1993) 0.06" NA
Feb 7 16° 36° -14° (1977) 51° (1965) 0.06" NA
Feb 8 16° 36° -14° (1977) 60° (1966) 0.06" NA
Feb 9 17° 36° -12° (1979) 61° (1990) 0.06" NA
Feb 10 17° 37° -14° (1982) 58° (1966) 0.06" NA
Feb 11 17° 37° -13° (1982) 65° (1976) 0.06" NA
Feb 12 18° 37° -8° (1981) 70° (1999) 0.06" NA
Feb 13 18° 38° -8° (1988) 60° (1984) 0.06" NA
Feb 14 18° 38° -5° (1986) 66° (1954) 0.06" NA
Feb 15 18° 38° -8° (2007) 68° (1954) 0.06" NA
Feb 16 19° 38° -10° (1958) 68° (1976) 0.06" NA
Feb 17 19° 39° -10° (1958) 61° (2006) 0.07" NA
Feb 18 19° 39° -10° (1993) 64° (1961) 0.07" NA
Feb 19 20° 40° -9° (1979) 62° (1981) 0.07" NA
Feb 20 20° 40° -8° (1979) 60° (1954) 0.07" NA
Feb 21 20° 40° -4° (1963) 65° (1983) 0.07" NA
Feb 22 21° 41° -6° (1963) 67° (1983) 0.07" NA
Feb 23 21° 41° 0° (1978) 66° (1983) 0.07" NA
Feb 24 22° 41° -3° (1967) 65° (1996) 0.07" NA
Feb 25 22° 42° -5° (1967) 67° (2000) 0.07" NA
Feb 26 22° 42° -13° (1963) 72° (2000) 0.08" NA
Feb 27 23° 43° -12° (1963) 72° (1996) 0.08" NA
Feb 28 23° 43° 0° (2002) 63° (1972) 0.08" NA
Feb 29 23° 43° -5° (1980) 70° (1976) 0.08" NA
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