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
Jul 1 60° 84° 44° (1995) 102° (1961) 0.11" NA
Jul 2 61° 85° 48° (1995) 98° (1970) 0.11" NA
Jul 3 61° 85° 52° (1967) 97° (1966) 0.11" NA
Jul 4 61° 85° 50° (1967) 103° (1990) 0.1" NA
Jul 5 61° 85° 45° (1972) 101° (1966) 0.1" NA
Jul 6 61° 85° 48° (1967) 101° (1988) 0.1" NA
Jul 7 62° 85° 51° (1984) 100° (1988) 0.1" NA
Jul 8 62° 85° 52° (1994) 100° (1980) 0.1" NA
Jul 9 62° 86° 51° (1994) 103° (1989) 0.1" NA
Jul 10 62° 86° 53° (1968) 108° (1989) 0.1" NA
Jul 11 62° 86° 54° (1990) 103° (1966) 0.1" NA
Jul 12 62° 86° 50° (1993) 101° (1981) 0.1" NA
Jul 13 62° 86° 46° (1990) 105° (1995) 0.1" NA
Jul 14 62° 86° 47° (1990) 105° (1980) 0.1" NA
Jul 15 62° 86° 53° (1973) 101° (1964) 0.09" NA
Jul 16 63° 86° 50° (1973) 99° (1980) 0.09" NA
Jul 17 63° 86° 54° (1979) 100° (1975) 0.09" NA
Jul 18 63° 86° 52° (1976) 104° (1974) 0.09" NA
Jul 19 63° 86° 51° (1992) 106° (1974) 0.09" NA
Jul 20 63° 86° 48° (1970) 101° (1983) 0.09" NA
Jul 21 63° 87° 49° (1970) 103° (1974) 0.09" NA
Jul 22 63° 87° 52° (1985) 99° (1964) 0.09" NA
Jul 23 63° 87° 52° (1994) 104° (1964) 0.09" NA
Jul 24 63° 87° 53° (1994) 101° (1964) 0.09" NA
Jul 25 63° 87° 55° (1988) 99° (1980) 0.09" NA
Jul 26 63° 86° 51° (1962) 99° (1976) 0.09" NA
Jul 27 63° 86° 54° (1981) 101° (1975) 0.1" NA
Jul 28 63° 86° 47° (1994) 97° (1964) 0.1" NA
Jul 29 63° 86° 48° (1994) 103° (1975) 0.1" NA
Jul 30 63° 86° 44° (1971) 105° (1970) 0.1" NA
Jul 31 63° 86° 48° (1990) 99° (1970) 0.1" NA
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