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
Mar 1 33° 62° 12° (2002) 79° (1962) 0.16" NA
Mar 2 34° 62° 15° (1980) 85° (1997) 0.16" NA
Mar 3 34° 63° 1° (1980) 83° (1997) 0.16" NA
Mar 4 34° 63° 9° (1980) 84° (1997) 0.16" NA
Mar 5 35° 63° 18° (1960) 83° (1976) 0.16" NA
Mar 6 35° 63° 18° (1960) 84° (1997) 0.16" NA
Mar 7 35° 64° 24° (1960) 83° (1961) 0.16" NA
Mar 8 35° 64° 25° (2001) 82° (1974) 0.16" NA
Mar 9 36° 64° 15° (1996) 84° (1974) 0.16" NA
Mar 10 36° 65° 15° (1996) 82° (1974) 0.16" NA
Mar 11 36° 65° 18° (1996) 88° (1974) 0.16" NA
Mar 12 36° 65° 21° (1998) 85° (1990) 0.17" NA
Mar 13 37° 65° 18° (1998) 85° (1990) 0.16" NA
Mar 14 37° 66° 20° (1993) 85° (1990) 0.16" NA
Mar 15 37° 66° 16° (1993) 82° (1967) 0.16" NA
Mar 16 37° 66° 16° (1993) 84° (1989) 0.16" NA
Mar 17 38° 66° 22° (1988) 82° (2002) 0.16" NA
Mar 18 38° 67° 22° (2007) 85° (2002) 0.16" NA
Mar 19 38° 67° 22° (2007) 84° (1989) 0.16" NA
Mar 20 38° 67° 26° (1993) 84° (1982) 0.16" NA
Mar 21 39° 68° 23° (1965) 86° (1982) 0.16" NA
Mar 22 39° 68° 25° (2004) 86° (1982) 0.16" NA
Mar 23 39° 68° 25° (2004) 85° (1995) 0.16" NA
Mar 24 39° 68° 25° (2004) 87° (1995) 0.16" NA
Mar 25 40° 69° 28° (2004) 85° (2007) 0.15" NA
Mar 26 40° 69° 25° (1979) 89° (2007) 0.15" NA
Mar 27 40° 69° 28° (1971) 84° (1967) 0.15" NA
Mar 28 40° 70° 29° (1971) 86° (1994) 0.15" NA
Mar 29 40° 70° 30° (1982) 87° (2007) 0.15" NA
Mar 30 40° 70° 29° (1964) 85° (1997) 0.14" NA
Mar 31 41° 70° 28° (1964) 86° (1985) 0.14" NA
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