Johnston, South Carolina
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 29° 54° -2° (1985) 81° (2002) 5.12" 0.6"
February 30° 58° 8° (1958) 83° (1996) 4.22" 2"
March 37° 66° 1° (1980) 89° (2007) 4.88" 0.1"
April 44° 75° 19° (2007) 94° (2002) 3.38" 0"
May 54° 82° 34° (2004) 100° (2000) 3.45" 0"
June 62° 89° 46° (2000) 106° (1958) 4.54" 0"
July 66° 92° 52° (2007) 107° (1980) 4.29" 0"
August 65° 90° 46° (1969) 110° (2007) 4.97" 0"
September 60° 84° 36° (1967) 105° (1999) 3.96" 0"
October 48° 75° 24° (2001) 93° (1986) 3.16" 0"
November 39° 66° 15° (1970) 89° (1961) 3.17" 0"
December 31° 57° 3° (1962) 81° (1998) 3.51" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 65° 91° 54° (1979) 100° (1959) 0.15" NA
Jul 2 65° 91° 57° (1979) 102° (1996) 0.14" NA
Jul 3 65° 91° 58° (1988) 103° (1996) 0.14" NA
Jul 4 65° 91° 55° (2007) 104° (1997) 0.14" NA
Jul 5 65° 92° 55° (2007) 106° (1997) 0.14" NA
Jul 6 66° 92° 54° (2007) 104° (1993) 0.14" NA
Jul 7 66° 92° 54° (2007) 103° (1993) 0.14" NA
Jul 8 66° 92° 53° (1979) 104° (1977) 0.14" NA
Jul 9 66° 92° 56° (1979) 106° (1977) 0.14" NA
Jul 10 66° 92° 56° (2006) 103° (1986) 0.14" NA
Jul 11 66° 92° 58° (1963) 104° (1990) 0.14" NA
Jul 12 66° 92° 59° (1963) 102° (1993) 0.13" NA
Jul 13 66° 92° 59° (1978) 103° (1980) 0.13" NA
Jul 14 66° 92° 57° (2001) 107° (1980) 0.13" NA
Jul 15 66° 92° 55° (2001) 103° (1977) 0.13" NA
Jul 16 66° 92° 56° (1967) 102° (1988) 0.13" NA
Jul 17 66° 92° 57° (2004) 106° (1977) 0.13" NA
Jul 18 66° 92° 62° (2004) 101° (1980) 0.13" NA
Jul 19 66° 92° 60° (1987) 104° (2002) 0.13" NA
Jul 20 67° 92° 59° (2004) 105° (1986) 0.14" NA
Jul 21 67° 92° 60° (1987) 104° (1977) 0.14" NA
Jul 22 67° 92° 61° (2004) 105° (1977) 0.14" NA
Jul 23 67° 92° 52° (2007) 103° (1993) 0.14" NA
Jul 24 67° 92° 53° (2007) 101° (1999) 0.14" NA
Jul 25 66° 92° 55° (2007) 102° (1978) 0.14" NA
Jul 26 66° 92° 63° (2005) 100° (1978) 0.14" NA
Jul 27 66° 92° 61° (2004) 103° (2005) 0.14" NA
Jul 28 66° 92° 62° (1962) 103° (2005) 0.14" NA
Jul 29 66° 92° 61° (2004) 102° (2002) 0.14" NA
Jul 30 66° 92° 61° (1979) 103° (2002) 0.15" NA
Jul 31 66° 91° 60° (1997) 105° (2002) 0.15" NA
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