Isabel, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° -36° (1966) 66° (1981) 0.43" 5.6"
February 12° 33° -35° (1996) 70° (1992) 0.62" 6.7"
March 22° 43° -25° (1962) 80° (1963) 1.15" 7.6"
April 33° 59° -1° (1975) 95° (1992) 1.7" 5.3"
May 44° 70° 16° (1967) 100° (1969) 2.84" 0.2"
June 54° 79° 32° (1951) 108° (2002) 3.3" 0"
July 60° 86° 39° (1959) 112° (2006) 2.62" 0"
August 58° 85° 35° (1964) 107° (1988) 1.71" 0"
September 47° 75° 19° (1974) 105° (1948) 1.44" 0.1"
October 35° 59° -6° (1991) 94° (1953) 1.56" 1.1"
November 21° 42° -20° (1985) 77° (1999) 0.61" 5.9"
December 10° 30° -34° (1989) 70° (1965) 0.48" 7.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 14° 34° -9° (1985) 65° (1969) 0.02" 0.2"
Dec 2 14° 33° -24° (1985) 61° (1949) 0.01" 0.3"
Dec 3 13° 33° -11° (1985) 57° (1959) 0.02" 0.2"
Dec 4 13° 32° -6° (1972) 70° (1965) 0.01" 0.3"
Dec 5 12° 32° -15° (2005) 64° (1988) 0.02" 0.2"
Dec 6 12° 32° -23° (1972) 60° (1991) 0.02" 0.3"
Dec 7 12° 31° -17° (1972) 56° (1965) 0.01" 0.2"
Dec 8 11° 31° -21° (1972) 58° (1990) 0.02" 0.3"
Dec 9 11° 31° -27° (1977) 62° (1957) 0.01" 0.2"
Dec 10 11° 30° -21° (1972) 64° (1979) 0.02" 0.3"
Dec 11 11° 30° -18° (1962) 57° (2004) 0.01" 0.2"
Dec 12 10° 30° -17° (2000) 53° (1957) 0.02" 0.2"
Dec 13 10° 30° -19° (1985) 53° (2002) 0.01" 0.3"
Dec 14 10° 29° -22° (1989) 61° (1997) 0.01" 0.2"
Dec 15 10° 29° -26° (1989) 58° (1959) 0.02" 0.2"
Dec 16 29° -26° (1951) 61° (1962) 0.01" 0.3"
Dec 17 29° -21° (1964) 59° (1976) 0.02" 0.2"
Dec 18 29° -24° (1951) 58° (1979) 0.01" 0.2"
Dec 19 28° -23° (1955) 53° (1956) 0.02" 0.3"
Dec 20 28° -20° (1951) 54° (1957) 0.01" 0.2"
Dec 21 28° -33° (1989) 52° (1954) 0.02" 0.2"
Dec 22 28° -34° (1989) 56° (1954) 0.01" 0.3"
Dec 23 28° -31° (1983) 54° (1950) 0.02" 0.2"
Dec 24 28° -28° (1983) 48° (1963) 0.02" 0.3"
Dec 25 28° -22° (1983) 53° (1963) 0.01" 0.2"
Dec 26 28° -25° (1996) 53° (2005) 0.02" 0.3"
Dec 27 28° -15° (1996) 58° (1980) 0.02" 0.3"
Dec 28 28° -14° (1968) 54° (1999) 0.01" 0.2"
Dec 29 28° -24° (1990) 53° (1999) 0.02" 0.2"
Dec 30 28° -32° (1990) 49° (1956) 0.01" 0.3"
Dec 31 27° -30° (1967) 58° (1963) 0.02" 0.2"
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