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) 0.52" 6.5"
February 15° 38° -27° (1996) 78° (2006) 0.65" 7.4"
March 23° 48° -18° (1980) 88° (1978) 1.54" 10.1"
April 34° 60° 7° (1997) 99° (1980) 2.72" 6.6"
May 47° 71° 20° (1981) 100° (2004) 3.76" 0.6"
June 57° 81° 34° (1998) 109° (1988) 3.91" 0"
July 63° 88° 40° (1972) 112° (2003) 2.94" 0"
August 60° 87° 39° (1964) 112° (1965) 2.23" 0"
September 50° 78° 24° (1965) 105° (1979) 2.24" 0.2"
October 37° 64° 6° (1991) 96° (1997) 1.87" 1.4"
November 25° 47° -12° (1959) 86° (1999) 0.97" 7.6"
December 14° 34° -29° (1989) 74° (1998) 0.61" 8.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 19° 42° -18° (1980) 77° (1992) 0.03" 0.3"
Mar 2 19° 43° -3° (2002) 80° (1974) 0.03" 0.3"
Mar 3 19° 43° -15° (1960) 78° (1974) 0.04" 0.4"
Mar 4 19° 44° -17° (1960) 74° (2000) 0.03" 0.3"
Mar 5 20° 44° -9° (1989) 77° (2000) 0.04" 0.3"
Mar 6 20° 44° -4° (1989) 80° (1972) 0.03" 0.3"
Mar 7 20° 45° -12° (1996) 83° (1987) 0.04" 0.4"
Mar 8 21° 45° -11° (1996) 75° (1986) 0.04" 0.3"
Mar 9 21° 45° -5° (1996) 67° (1974) 0.04" 0.4"
Mar 10 21° 46° -13° (1948) 79° (1995) 0.04" 0.3"
Mar 11 22° 46° -18° (1948) 82° (1995) 0.04" 0.4"
Mar 12 22° 47° -13° (1950) 72° (1979) 0.05" 0.4"
Mar 13 22° 47° -7° (1950) 81° (2007) 0.04" 0.3"
Mar 14 23° 47° 0° (1954) 83° (2003) 0.05" 0.4"
Mar 15 23° 48° -7° (1949) 82° (2003) 0.05" 0.3"
Mar 16 23° 48° 1° (1962) 80° (1966) 0.05" 0.3"
Mar 17 24° 49° 3° (1962) 76° (1968) 0.05" 0.4"
Mar 18 24° 49° -2° (1965) 77° (1972) 0.05" 0.3"
Mar 19 24° 49° -6° (1965) 82° (2004) 0.05" 0.3"
Mar 20 25° 50° -4° (1965) 83° (1997) 0.06" 0.3"
Mar 21 25° 50° -1° (1965) 72° (1978) 0.05" 0.4"
Mar 22 25° 50° -2° (2002) 72° (1959) 0.06" 0.3"
Mar 23 26° 51° -10° (1965) 80° (1963) 0.05" 0.3"
Mar 24 26° 51° 3° (1974) 85° (1948) 0.07" 0.3"
Mar 25 26° 52° -5° (1965) 80° (1993) 0.06" 0.3"
Mar 26 27° 52° -1° (1996) 81° (1993) 0.06" 0.3"
Mar 27 27° 52° 2° (1955) 87° (1988) 0.06" 0.3"
Mar 28 27° 53° 6° (1964) 84° (1986) 0.07" 0.3"
Mar 29 28° 53° 2° (1975) 83° (1986) 0.07" 0.3"
Mar 30 28° 54° 9° (1987) 88° (1978) 0.07" 0.3"
Mar 31 28° 54° 14° (1954) 83° (1978) 0.07" 0.3"
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