Johnston, South Carolina
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 31° 53° -2° (1985) 81° (2002) 4.35" 0.5"
February 35° 57° 8° (1958) 83° (1996) 4.33" 0.4"
March 41° 65° 1° (1980) 89° (2007) 4.53" 0.1"
April 47° 73° 19° (2007) 94° (2002) 3.09" 0"
May 56° 82° 34° (2004) 100° (2000) 2.99" 0"
June 65° 88° 46° (2000) 106° (1958) 4.64" 0"
July 68° 91° 52° (2007) 107° (1980) 4.19" 0"
August 67° 89° 46° (1969) 110° (2007) 4.89" 0"
September 61° 83° 36° (1967) 105° (1999) 3.67" 0"
October 50° 74° 24° (2001) 93° (1986) 3.43" 0"
November 41° 65° 15° (1970) 89° (1961) 3.37" 0"
December 33° 55° 3° (1962) 81° (1998) 3.58" 0.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 68° 91° 56° (1997) 104° (1999) 0.17" 0"
Aug 2 68° 91° 56° (1997) 105° (1999) 0.16" 0"
Aug 3 68° 91° 58° (1997) 103° (1980) 0.17" 0"
Aug 4 68° 91° 58° (1998) 101° (1980) 0.16" 0"
Aug 5 68° 90° 56° (1998) 102° (2004) 0.17" 0"
Aug 6 68° 90° 55° (1998) 102° (1980) 0.18" 0"
Aug 7 68° 90° 49° (2004) 104° (2007) 0.16" 0"
Aug 8 68° 90° 47° (2004) 106° (2007) 0.18" 0"
Aug 9 68° 90° 50° (2002) 107° (2007) 0.17" 0"
Aug 10 68° 90° 50° (2002) 109° (2007) 0.17" 0"
Aug 11 68° 90° 55° (2002) 110° (2007) 0.17" 0"
Aug 12 68° 90° 55° (2002) 105° (1999) 0.18" 0"
Aug 13 68° 90° 53° (1979) 101° (1999) 0.17" 0"
Aug 14 68° 90° 57° (1967) 105° (1999) 0.17" 0"
Aug 15 68° 89° 54° (1979) 107° (1999) 0.17" 0"
Aug 16 67° 89° 58° (1967) 106° (2007) 0.16" 0"
Aug 17 67° 89° 58° (1979) 105° (2007) 0.16" 0"
Aug 18 67° 89° 58° (1979) 107° (2007) 0.15" 0"
Aug 19 67° 89° 57° (1979) 103° (2002) 0.15" 0"
Aug 20 67° 89° 57° (2004) 102° (1999) 0.15" 0"
Aug 21 67° 89° 56° (1977) 103° (1983) 0.15" 0"
Aug 22 67° 89° 56° (1998) 106° (1983) 0.16" 0"
Aug 23 67° 89° 53° (1998) 104° (1983) 0.15" 0"
Aug 24 67° 88° 55° (1978) 104° (2002) 0.15" 0"
Aug 25 67° 88° 54° (1969) 107° (2002) 0.15" 0"
Aug 26 66° 88° 53° (1997) 100° (1975) 0.15" 0"
Aug 27 66° 88° 57° (1980) 99° (1959) 0.14" 0"
Aug 28 66° 88° 55° (1969) 102° (1998) 0.13" 0"
Aug 29 66° 88° 55° (1968) 103° (1998) 0.13" 0"
Aug 30 66° 87° 46° (1969) 103° (1998) 0.13" 0"
Aug 31 66° 87° 55° (1986) 104° (1998) 0.13" 0"
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