Princeton, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 29° -20° (1994) 68° (1989) 1.65" NA
February 20° 35° -22° (1996) 69° (2000) 1.48" NA
March 30° 47° -6° (2002) 82° (1991) 2.46" NA
April 40° 61° 17° (1997) 93° (2002) 3.76" NA
May 51° 73° 29° (1989) 95° (2006) 4.09" NA
June 61° 82° 40° (1993) 102° (1988) 4.36" NA
July 65° 85° 48° (2001) 102° (2005) 3.34" NA
August 63° 82° 48° (1994) 102° (1988) 4.76" NA
September 55° 75° 30° (1995) 96° (2000) 3.65" NA
October 43° 63° 19° (1988) 89° (2007) 2.94" NA
November 31° 47° 7° (1991) 79° (2000) 2.93" NA
December 19° 33° -18° (1989) 68° (2001) 2.45" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 25° 39° 12° (2002) 57° (1998) 0.09" NA
Dec 2 24° 38° 9° (2006) 61° (1998) 0.09" NA
Dec 3 24° 38° 1° (1991) 65° (1998) 0.09" NA
Dec 4 24° 37° -4° (1991) 68° (1998) 0.09" NA
Dec 5 23° 37° 2° (2006) 68° (2001) 0.09" NA
Dec 6 23° 36° 6° (2007) 58° (1998) 0.09" NA
Dec 7 22° 36° 7° (2006) 49° (1991) 0.09" NA
Dec 8 22° 36° -3° (1995) 64° (1991) 0.09" NA
Dec 9 22° 35° -3° (1995) 54° (1993) 0.09" NA
Dec 10 21° 35° 0° (1995) 50° (1991) 0.08" NA
Dec 11 21° 35° 4° (1989) 56° (1990) 0.08" NA
Dec 12 20° 34° -6° (2000) 62° (1991) 0.08" NA
Dec 13 20° 34° -7° (2000) 46° (1998) 0.08" NA
Dec 14 20° 34° -4° (1989) 54° (2006) 0.08" NA
Dec 15 19° 33° -15° (1989) 52° (1998) 0.08" NA
Dec 16 19° 33° -9° (1989) 55° (2006) 0.08" NA
Dec 17 19° 33° -1° (2000) 50° (2006) 0.08" NA
Dec 18 19° 32° -1° (1989) 58° (2002) 0.08" NA
Dec 19 18° 32° -6° (1989) 56° (1988) 0.08" NA
Dec 20 18° 32° -9° (1989) 54° (1988) 0.08" NA
Dec 21 18° 32° -18° (1989) 50° (2006) 0.07" NA
Dec 22 17° 31° -18° (1989) 50° (2006) 0.07" NA
Dec 23 17° 31° -18° (1989) 46° (1988) 0.07" NA
Dec 24 17° 31° -8° (2000) 47° (1987) 0.07" NA
Dec 25 16° 31° -13° (2000) 44° (1994) 0.07" NA
Dec 26 16° 30° -6° (1990) 51° (1994) 0.07" NA
Dec 27 16° 30° 3° (2000) 54° (1994) 0.07" NA
Dec 28 16° 30° -1° (1993) 52° (2003) 0.07" NA
Dec 29 15° 30° 5° (1993) 54° (2006) 0.07" NA
Dec 30 15° 30° -4° (1998) 61° (2002) 0.07" NA
Dec 31 15° 30° -1° (1990) 56° (2004) 0.06" NA
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