Winthrop, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 26° -26° (1985) 61° (2002) 0.96" 8.8"
February 12° 31° -30° (1996) 66° (2000) 1.24" 6.7"
March 24° 44° -11° (2002) 86° (1986) 1.94" 4"
April 36° 59° -1° (1982) 90° (2007) 3.56" 1.8"
May 48° 70° 20° (2005) 93° (1991) 4.27" 0.1"
June 58° 80° 36° (1993) 100° (1988) 5.54" 0"
July 62° 83° 41° (1984) 102° (1988) 4.93" 0"
August 59° 81° 36° (2004) 101° (1988) 4.88" 0"
September 50° 74° 26° (1984) 96° (1999) 2.99" 0"
October 38° 61° 15° (1997) 94° (1997) 2.52" 0.4"
November 26° 45° -6° (1986) 79° (1999) 2.3" 2.8"
December 13° 30° -29° (2000) 67° (1998) 1.45" 8.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 17° 36° 5° (1991) 60° (1998) 0.06" 0.2"
Dec 2 17° 35° -6° (1985) 62° (1982) 0.07" 0.2"
Dec 3 16° 34° -17° (1985) 61° (1982) 0.06" 0.3"
Dec 4 16° 34° -8° (1991) 67° (1998) 0.07" 0.2"
Dec 5 16° 33° -4° (1992) 67° (1998) 0.06" 0.3"
Dec 6 15° 33° -8° (1985) 66° (2001) 0.05" 0.2"
Dec 7 15° 33° -1° (2008) 51° (2001) 0.06" 0.3"
Dec 8 15° 32° -3° (1995) 50° (1984) 0.06" 0.3"
Dec 9 14° 32° -6° (1995) 50° (1993) 0.05" 0.2"
Dec 10 14° 31° -8° (1995) 47° (1984) 0.06" 0.3"
Dec 11 14° 31° -10° (1994) 50° (1998) 0.05" 0.3"
Dec 12 13° 31° -12° (1985) 48° (1998) 0.05" 0.3"
Dec 13 13° 30° -19° (1985) 48° (1998) 0.05" 0.2"
Dec 14 13° 30° -20° (1985) 54° (1998) 0.05" 0.3"
Dec 15 12° 30° -20° (1989) 52° (2008) 0.05" 0.3"
Dec 16 12° 29° -13° (1989) 53° (1984) 0.04" 0.3"
Dec 17 12° 29° -13° (1983) 45° (2001) 0.04" 0.2"
Dec 18 12° 29° -20° (1983) 47° (2002) 0.04" 0.3"
Dec 19 11° 29° -25° (1983) 56° (2002) 0.04" 0.2"
Dec 20 11° 28° -18° (1983) 47° (1988) 0.03" 0.3"
Dec 21 11° 28° -22° (1989) 43° (1986) 0.04" 0.3"
Dec 22 11° 28° -22° (1983) 45° (1982) 0.04" 0.2"
Dec 23 11° 28° -23° (1989) 45° (2001) 0.04" 0.3"
Dec 24 10° 28° -25° (1983) 52° (1982) 0.03" 0.2"
Dec 25 10° 27° -29° (2000) 52° (1982) 0.04" 0.3"
Dec 26 10° 27° -16° (1990) 42° (1994) 0.04" 0.3"
Dec 27 10° 27° -8° (1996) 48° (2008) 0.04" 0.2"
Dec 28 10° 27° -13° (1993) 60° (1984) 0.04" 0.3"
Dec 29 10° 27° -9° (1983) 55° (1984) 0.03" 0.3"
Dec 30 27° -9° (1983) 47° (1999) 0.04" 0.3"
Dec 31 27° -9° (1990) 57° (2004) 0.03" 0.3"
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