Herndon, Georgia
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 36° 59° -1° (1985) 81° (1975) 4.94" 0.1"
February 38° 63° 9° (1958) 84° (1989) 4.06" 0.8"
March 46° 71° 10° (1980) 90° (2007) 4.54" 0"
April 52° 78° 29° (2007) 95° (1986) 3.08" 0"
May 60° 84° 39° (1989) 97° (1962) 2.96" 0"
June 66° 90° 44° (1988) 104° (1998) 4.06" 0"
July 70° 93° 53° (1988) 105° (1986) 4.13" 0"
August 68° 91° 55° (1968) 105° (2007) 4.54" 0"
September 64° 87° 38° (1967) 100° (1999) 3.5" 0"
October 53° 78° 21° (1976) 95° (1986) 3.01" 0"
November 45° 69° 14° (1970) 89° (1983) 2.89" 0"
December 38° 61° 6° (1962) 84° (1984) 3.19" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 67° 89° 56° (1999) 98° (1957) 0.14" NA
Sep 2 67° 89° 54° (1972) 100° (1957) 0.13" NA
Sep 3 67° 89° 59° (1967) 98° (1957) 0.13" NA
Sep 4 66° 89° 58° (1995) 98° (1980) 0.13" NA
Sep 5 66° 89° 52° (1997) 99° (1999) 0.13" NA
Sep 6 66° 89° 50° (1982) 100° (1999) 0.13" NA
Sep 7 66° 88° 50° (1982) 96° (1999) 0.13" NA
Sep 8 66° 88° 52° (1972) 98° (1980) 0.13" NA
Sep 9 66° 88° 58° (1988) 99° (1990) 0.12" NA
Sep 10 65° 88° 53° (1998) 98° (1983) 0.12" NA
Sep 11 65° 88° 52° (1972) 99° (1983) 0.12" NA
Sep 12 65° 87° 55° (1968) 96° (1981) 0.12" NA
Sep 13 65° 87° 49° (1976) 95° (1980) 0.12" NA
Sep 14 64° 87° 54° (1964) 96° (1972) 0.12" NA
Sep 15 64° 87° 52° (1967) 99° (1972) 0.12" NA
Sep 16 64° 87° 50° (1961) 99° (1972) 0.11" NA
Sep 17 64° 86° 49° (2001) 100° (1980) 0.11" NA
Sep 18 63° 86° 50° (1961) 97° (1972) 0.11" NA
Sep 19 63° 86° 47° (1981) 95° (1970) 0.11" NA
Sep 20 63° 86° 41° (1984) 98° (1997) 0.11" NA
Sep 21 62° 85° 44° (1984) 94° (1978) 0.11" NA
Sep 22 62° 85° 48° (1983) 95° (1980) 0.11" NA
Sep 23 62° 85° 46° (1983) 100° (1980) 0.11" NA
Sep 24 61° 85° 45° (1982) 100° (1980) 0.11" NA
Sep 25 61° 84° 45° (1990) 93° (1961) 0.11" NA
Sep 26 60° 84° 49° (1990) 95° (1980) 0.11" NA
Sep 27 60° 84° 50° (1991) 97° (1981) 0.1" NA
Sep 28 60° 84° 46° (1993) 97° (1986) 0.1" NA
Sep 29 59° 83° 44° (1967) 95° (1981) 0.1" NA
Sep 30 59° 83° 38° (1967) 94° (1981) 0.1" NA
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