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
Jan 1 29° 54° 15° (1984) 78° (1997) 0.14" NA
Jan 2 29° 54° 17° (1998) 77° (1985) 0.15" NA
Jan 3 29° 54° 11° (1979) 75° (2000) 0.15" NA
Jan 4 29° 53° 11° (2002) 78° (2000) 0.15" NA
Jan 5 29° 53° 14° (1981) 73° (1997) 0.16" NA
Jan 6 29° 53° 12° (1999) 74° (1998) 0.16" NA
Jan 7 29° 53° 13° (1999) 72° (2007) 0.16" NA
Jan 8 29° 53° 10° (1970) 73° (1998) 0.16" NA
Jan 9 29° 53° 5° (1970) 71° (1998) 0.16" NA
Jan 10 29° 53° 5° (1970) 75° (1974) 0.17" NA
Jan 11 29° 53° 2° (1982) 74° (2006) 0.17" NA
Jan 12 29° 53° 1° (1982) 73° (1963) 0.17" NA
Jan 13 29° 53° 13° (1981) 76° (2000) 0.17" NA
Jan 14 29° 53° 15° (1964) 73° (1960) 0.17" NA
Jan 15 29° 53° 15° (1964) 74° (1999) 0.17" NA
Jan 16 29° 54° 10° (1994) 72° (2007) 0.17" NA
Jan 17 29° 54° 5° (1977) 72° (1974) 0.17" NA
Jan 18 29° 54° 10° (1977) 75° (1974) 0.17" NA
Jan 19 29° 54° 8° (1977) 70° (1969) 0.17" NA
Jan 20 29° 54° 9° (1994) 72° (2001) 0.17" NA
Jan 21 28° 54° -2° (1985) 70° (1982) 0.17" NA
Jan 22 28° 54° -2° (1985) 73° (1959) 0.17" NA
Jan 23 28° 54° 14° (1985) 74° (1999) 0.17" NA
Jan 24 28° 54° 11° (1963) 74° (1974) 0.17" NA
Jan 25 28° 55° 12° (2003) 76° (1974) 0.17" NA
Jan 26 28° 55° 16° (1963) 73° (1967) 0.17" NA
Jan 27 29° 55° 10° (2000) 75° (1967) 0.17" NA
Jan 28 29° 55° 7° (1986) 72° (1959) 0.17" NA
Jan 29 29° 55° 9° (1986) 77° (1999) 0.17" NA
Jan 30 29° 55° 2° (1966) 80° (2002) 0.17" NA
Jan 31 29° 55° 2° (1966) 81° (2002) 0.16" NA
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