Isabel, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° -36° (1966) 66° (1981) 0.41" 4.4"
February 12° 32° -35° (1996) 70° (1992) 0.54" 6.1"
March 21° 42° -25° (1962) 80° (1963) 1.2" 8.7"
April 33° 57° -1° (1975) 95° (1992) 1.96" 5.3"
May 45° 70° 16° (1967) 100° (1969) 2.9" 0.3"
June 54° 79° 32° (1951) 108° (2002) 3.17" 0"
July 59° 85° 39° (1959) 112° (2006) 2.46" 0"
August 58° 84° 35° (1964) 107° (1988) 1.89" 0"
September 47° 74° 19° (1974) 105° (1948) 1.26" 0"
October 35° 60° -6° (1991) 94° (1953) 1.63" 0.5"
November 21° 40° -20° (1985) 77° (1999) 0.67" 5.2"
December 28° -34° (1989) 70° (1965) 0.51" 6.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 60° 86° 45° (1948) 106° (1955) 0.07" NA
Aug 2 60° 86° 44° (1971) 101° (1955) 0.07" NA
Aug 3 60° 86° 38° (1978) 105° (1955) 0.07" NA
Aug 4 60° 86° 44° (1993) 101° (1949) 0.07" NA
Aug 5 60° 86° 50° (1980) 98° (2001) 0.07" NA
Aug 6 60° 86° 50° (1993) 105° (1949) 0.07" NA
Aug 7 60° 86° 45° (1989) 107° (1949) 0.07" NA
Aug 8 60° 86° 47° (1972) 102° (1958) 0.07" NA
Aug 9 60° 86° 44° (1966) 105° (1958) 0.07" NA
Aug 10 59° 86° 42° (1982) 99° (2000) 0.07" NA
Aug 11 59° 86° 41° (1952) 103° (1988) 0.06" NA
Aug 12 59° 85° 35° (1964) 102° (1949) 0.06" NA
Aug 13 59° 85° 42° (2004) 101° (1972) 0.06" NA
Aug 14 59° 85° 44° (1985) 99° (1952) 0.06" NA
Aug 15 58° 85° 47° (1970) 107° (1988) 0.06" NA
Aug 16 58° 85° 45° (1970) 103° (1988) 0.06" NA
Aug 17 58° 84° 44° (2002) 105° (1973) 0.06" NA
Aug 18 58° 84° 42° (1985) 102° (1955) 0.06" NA
Aug 19 58° 84° 36° (1950) 103° (1948) 0.06" NA
Aug 20 57° 84° 37° (1950) 101° (1976) 0.06" NA
Aug 21 57° 83° 45° (1951) 97° (1971) 0.06" NA
Aug 22 57° 83° 44° (1966) 103° (1960) 0.06" NA
Aug 23 56° 83° 43° (1966) 104° (1949) 0.06" NA
Aug 24 56° 83° 41° (1958) 98° (1967) 0.06" NA
Aug 25 56° 82° 37° (1992) 103° (1991) 0.05" NA
Aug 26 55° 82° 44° (1957) 105° (1970) 0.05" NA
Aug 27 55° 82° 43° (1976) 103° (1973) 0.05" NA
Aug 28 54° 81° 38° (1988) 101° (1991) 0.05" NA
Aug 29 54° 81° 39° (1988) 100° (1961) 0.05" NA
Aug 30 54° 80° 40° (2003) 99° (1948) 0.05" NA
Aug 31 53° 80° 38° (1994) 100° (1953) 0.05" NA
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