Winner, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 34° -27° (1966) 73° (1981) 0.53" 6.7"
February 18° 40° -27° (1996) 78° (2006) 0.63" 7.7"
March 25° 50° -18° (1980) 88° (1978) 1.73" 10.6"
April 36° 62° 7° (1997) 99° (1980) 2.63" 3.3"
May 48° 74° 20° (1981) 100° (2004) 3.85" 0.2"
June 57° 84° 34° (1998) 109° (1988) 3.38" 0"
July 62° 90° 40° (1972) 112° (2003) 3.3" 0"
August 61° 89° 39° (1964) 112° (1965) 2.17" 0"
September 51° 80° 24° (1965) 105° (1979) 2.09" 0.2"
October 39° 66° 6° (1991) 96° (1997) 1.91" 1.5"
November 25° 46° -12° (1959) 86° (1999) 0.96" 5.8"
December 15° 36° -29° (1989) 74° (1998) 0.54" 7.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 31° 56° 8° (1975) 85° (1963) 0.07" NA
Apr 2 31° 57° 8° (1975) 83° (2003) 0.07" NA
Apr 3 31° 57° 8° (1975) 81° (1990) 0.07" NA
Apr 4 32° 58° 11° (1968) 79° (2005) 0.07" NA
Apr 5 32° 58° 12° (1968) 86° (1991) 0.07" NA
Apr 6 33° 58° 13° (1982) 87° (1991) 0.08" NA
Apr 7 33° 59° 13° (1997) 89° (1988) 0.08" NA
Apr 8 33° 59° 7° (1997) 88° (1988) 0.08" NA
Apr 9 34° 60° 14° (1982) 92° (1977) 0.08" NA
Apr 10 34° 60° 15° (1973) 90° (1977) 0.08" NA
Apr 11 34° 60° 12° (1997) 90° (1985) 0.08" NA
Apr 12 35° 61° 11° (1957) 84° (1985) 0.08" NA
Apr 13 35° 61° 13° (1950) 88° (2003) 0.08" NA
Apr 14 35° 62° 15° (1983) 90° (2003) 0.08" NA
Apr 15 36° 62° 20° (1951) 92° (1971) 0.09" NA
Apr 16 36° 62° 15° (1961) 92° (1964) 0.09" NA
Apr 17 37° 63° 18° (1961) 91° (1985) 0.09" NA
Apr 18 37° 63° 18° (1988) 91° (1985) 0.09" NA
Apr 19 37° 64° 20° (1956) 89° (1985) 0.09" NA
Apr 20 38° 64° 15° (1966) 97° (1980) 0.09" NA
Apr 21 38° 64° 22° (1966) 99° (1980) 0.09" NA
Apr 22 39° 65° 20° (1951) 95° (1980) 0.1" NA
Apr 23 39° 65° 25° (1963) 91° (1989) 0.1" NA
Apr 24 39° 66° 27° (1956) 92° (1962) 0.1" NA
Apr 25 40° 66° 26° (1961) 94° (1962) 0.1" NA
Apr 26 40° 66° 14° (1950) 90° (1975) 0.1" NA
Apr 27 40° 67° 18° (1950) 91° (1952) 0.1" NA
Apr 28 41° 67° 24° (1956) 90° (1987) 0.11" NA
Apr 29 41° 68° 19° (1966) 88° (1987) 0.11" NA
Apr 30 42° 68° 22° (1966) 98° (1992) 0.11" NA
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