Janesville, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° -30° (1970) 73° (1981) 0.46" NA
February 13° 34° -26° (1994) 78° (1982) 0.55" NA
March 23° 45° -19° (1962) 86° (1978) 1.87" NA
April 36° 59° 6° (1975) 95° (1980) 2.52" NA
May 48° 71° 26° (1967) 103° (1967) 3.9" NA
June 57° 81° 37° (1990) 109° (1988) 3.81" NA
July 62° 86° 44° (1995) 108° (1989) 3.01" NA
August 61° 84° 43° (1994) 108° (1988) 3.07" NA
September 50° 75° 26° (1991) 104° (1970) 2.13" NA
October 38° 62° 12° (1991) 94° (1963) 1.8" NA
November 24° 44° -13° (1991) 79° (1978) 1.29" NA
December 11° 32° -28° (1990) 64° (1962) 0.63" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 28° -23° (1974) 44° (1981) 0.02" NA
Jan 2 28° -21° (1974) 50° (1964) 0.02" NA
Jan 3 28° -19° (1968) 52° (1964) 0.02" NA
Jan 4 28° -16° (1969) 54° (1966) 0.02" NA
Jan 5 28° -16° (1969) 55° (1989) 0.02" NA
Jan 6 27° -18° (1988) 51° (1985) 0.02" NA
Jan 7 27° -26° (1968) 53° (1990) 0.02" NA
Jan 8 27° -19° (1982) 53° (1990) 0.02" NA
Jan 9 27° -22° (1974) 56° (1963) 0.02" NA
Jan 10 27° -23° (1982) 47° (1966) 0.02" NA
Jan 11 27° -22° (1982) 64° (1990) 0.02" NA
Jan 12 27° -22° (1974) 53° (1987) 0.02" NA
Jan 13 27° -21° (1964) 66° (1987) 0.02" NA
Jan 14 27° -20° (1964) 61° (1987) 0.02" NA
Jan 15 27° -22° (1972) 48° (1974) 0.02" NA
Jan 16 27° -20° (1972) 54° (1986) 0.01" NA
Jan 17 27° -21° (1978) 56° (1974) 0.01" NA
Jan 18 27° -18° (1978) 53° (1989) 0.01" NA
Jan 19 28° -30° (1970) 50° (1989) 0.01" NA
Jan 20 28° -28° (1970) 56° (1992) 0.01" NA
Jan 21 28° -20° (1962) 57° (1986) 0.01" NA
Jan 22 28° -18° (1966) 56° (1968) 0.01" NA
Jan 23 28° -18° (1966) 68° (1989) 0.01" NA
Jan 24 28° -17° (1963) 58° (1981) 0.01" NA
Jan 25 28° -17° (1961) 73° (1981) 0.01" NA
Jan 26 29° -19° (1988) 53° (1973) 0.01" NA
Jan 27 29° -18° (1988) 50° (1990) 0.01" NA
Jan 28 29° -17° (1972) 60° (1989) 0.01" NA
Jan 29 29° -15° (1972) 46° (1962) 0.01" NA
Jan 30 29° -27° (1966) 56° (1992) 0.01" NA
Jan 31 30° -19° (1980) 62° (1989) 0.01" NA
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