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
Jun 1 53° 77° 39° (1983) 90° (1976) 0.14" NA
Jun 2 53° 77° 42° (1979) 88° (1972) 0.14" NA
Jun 3 54° 77° 42° (1969) 89° (1968) 0.14" NA
Jun 4 54° 78° 37° (1990) 98° (1968) 0.14" NA
Jun 5 54° 78° 44° (1993) 97° (1977) 0.14" NA
Jun 6 55° 78° 42° (1983) 96° (1969) 0.13" NA
Jun 7 55° 78° 43° (1993) 95° (1987) 0.13" NA
Jun 8 55° 79° 41° (1978) 96° (1985) 0.13" NA
Jun 9 55° 79° 41° (1989) 98° (1964) 0.13" NA
Jun 10 56° 79° 46° (1988) 95° (1973) 0.13" NA
Jun 11 56° 80° 45° (1994) 100° (1976) 0.13" NA
Jun 12 56° 80° 45° (1974) 98° (1976) 0.13" NA
Jun 13 56° 80° 39° (1969) 96° (1988) 0.13" NA
Jun 14 57° 80° 43° (1969) 98° (1981) 0.13" NA
Jun 15 57° 81° 43° (1969) 102° (1979) 0.13" NA
Jun 16 57° 81° 46° (1974) 94° (1978) 0.13" NA
Jun 17 57° 81° 46° (1974) 96° (1995) 0.13" NA
Jun 18 58° 82° 49° (1976) 94° (1995) 0.13" NA
Jun 19 58° 82° 45° (1976) 99° (1988) 0.13" NA
Jun 20 58° 82° 45° (1976) 103° (1988) 0.12" NA
Jun 21 58° 82° 41° (1992) 104° (1974) 0.12" NA
Jun 22 59° 82° 40° (1992) 109° (1988) 0.12" NA
Jun 23 59° 83° 43° (1967) 96° (1988) 0.12" NA
Jun 24 59° 83° 50° (1974) 97° (1981) 0.12" NA
Jun 25 59° 83° 50° (1974) 106° (1988) 0.12" NA
Jun 26 59° 83° 45° (1992) 95° (1973) 0.12" NA
Jun 27 60° 84° 48° (1976) 99° (1971) 0.12" NA
Jun 28 60° 84° 47° (1976) 97° (1971) 0.11" NA
Jun 29 60° 84° 50° (1992) 104° (1970) 0.11" NA
Jun 30 60° 84° 49° (1995) 103° (1963) 0.11" NA
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