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) 1.03" NA
February 16° 32° -30° (1996) 66° (2000) 1.15" NA
March 27° 45° -11° (2002) 86° (1986) 1.96" NA
April 38° 60° -1° (1982) 90° (2007) 3.26" NA
May 50° 72° 20° (2005) 93° (1991) 3.84" NA
June 60° 82° 36° (1993) 100° (1988) 5.09" NA
July 63° 85° 41° (1984) 102° (1988) 4.09" NA
August 61° 82° 36° (2004) 101° (1988) 4.89" NA
September 52° 75° 26° (1984) 96° (1999) 3.24" NA
October 41° 63° 15° (1997) 94° (1997) 2.47" NA
November 28° 45° -6° (1986) 79° (1999) 2.41" NA
December 15° 31° -29° (2000) 67° (1998) 1.33" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 56° 78° 36° (1993) 92° (1988) 0.16" NA
Jun 2 56° 78° 45° (1986) 90° (2002) 0.16" NA
Jun 3 56° 79° 39° (1985) 84° (1991) 0.16" NA
Jun 4 57° 79° 39° (1990) 86° (1986) 0.16" NA
Jun 5 57° 79° 41° (1993) 89° (1981) 0.17" NA
Jun 6 57° 80° 42° (1983) 90° (1994) 0.17" NA
Jun 7 58° 80° 45° (1998) 92° (1988) 0.17" NA
Jun 8 58° 80° 50° (1995) 97° (1985) 0.17" NA
Jun 9 58° 80° 43° (1988) 89° (1999) 0.17" NA
Jun 10 58° 81° 43° (1989) 90° (2001) 0.17" NA
Jun 11 59° 81° 41° (2006) 94° (2001) 0.18" NA
Jun 12 59° 81° 43° (2006) 94° (2001) 0.18" NA
Jun 13 59° 81° 43° (1985) 95° (1987) 0.18" NA
Jun 14 59° 82° 47° (2006) 97° (1987) 0.18" NA
Jun 15 60° 82° 44° (1999) 91° (1994) 0.18" NA
Jun 16 60° 82° 46° (1989) 91° (1994) 0.18" NA
Jun 17 60° 82° 45° (2000) 93° (1987) 0.18" NA
Jun 18 60° 82° 44° (2000) 93° (1994) 0.18" NA
Jun 19 61° 83° 45° (1985) 92° (1994) 0.18" NA
Jun 20 61° 83° 42° (2003) 98° (1988) 0.17" NA
Jun 21 61° 83° 40° (1992) 100° (1988) 0.17" NA
Jun 22 61° 83° 49° (1982) 93° (1988) 0.17" NA
Jun 23 61° 83° 49° (1981) 94° (1995) 0.17" NA
Jun 24 61° 83° 53° (1986) 94° (1983) 0.17" NA
Jun 25 62° 83° 41° (2004) 95° (2005) 0.17" NA
Jun 26 62° 84° 47° (2004) 94° (1991) 0.16" NA
Jun 27 62° 84° 47° (1987) 94° (1991) 0.16" NA
Jun 28 62° 84° 48° (1985) 93° (1996) 0.16" NA
Jun 29 62° 84° 51° (1999) 95° (1991) 0.16" NA
Jun 30 62° 84° 48° (1988) 94° (1991) 0.15" NA
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