Jefferson, Maryland
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° 41° -10° (1984) 74° (1950) 3.05" NA
February 27° 46° -4° (1961) 79° (1985) 2.69" NA
March 35° 56° 3° (1980) 87° (1998) 3.45" NA
April 44° 67° 20° (1956) 94° (1990) 3.32" NA
May 54° 77° 30° (1956) 97° (1996) 4.18" NA
June 62° 85° 41° (1976) 101° (1988) 3.91" NA
July 67° 89° 47° (1952) 106° (1997) 3.5" NA
August 66° 87° 44° (1986) 104° (1983) 2.93" NA
September 59° 80° 34° (1997) 100° (1953) 3.82" NA
October 47° 68° 23° (1952) 91° (1951) 3.26" NA
November 38° 57° 12° (1950) 83° (1950) 3.27" NA
December 30° 46° -8° (1983) 77° (1998) 3.36" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 66° 88° 51° (1978) 99° (1959) 0.12" NA
Jul 2 66° 88° 47° (1952) 97° (1953) 0.12" NA
Jul 3 66° 88° 52° (1957) 97° (1954) 0.12" NA
Jul 4 66° 88° 53° (1986) 100° (1990) 0.12" NA
Jul 5 66° 89° 55° (1979) 100° (1990) 0.12" NA
Jul 6 66° 89° 50° (1951) 100° (1949) 0.12" NA
Jul 7 67° 89° 53° (1979) 101° (1988) 0.12" NA
Jul 8 67° 89° 53° (1960) 101° (1988) 0.12" NA
Jul 9 67° 89° 54° (1984) 101° (1990) 0.12" NA
Jul 10 67° 89° 52° (1961) 102° (1990) 0.12" NA
Jul 11 67° 89° 50° (1961) 100° (1988) 0.12" NA
Jul 12 67° 89° 53° (1953) 98° (1988) 0.12" NA
Jul 13 67° 89° NA (2001) 99° (1954) 0.12" NA
Jul 14 67° 89° 58° (1980) 100° (1954) 0.12" NA
Jul 15 67° 89° 56° (1960) 106° (1997) 0.12" NA
Jul 16 67° 89° 53° (1957) 104° (1988) 0.11" NA
Jul 17 67° 89° 51° (1957) 104° (1988) 0.11" NA
Jul 18 67° 89° 57° (1956) 101° (1997) 0.11" NA
Jul 19 67° 89° 49° (1957) 100° (1977) 0.11" NA
Jul 20 67° 90° 57° (1956) 99° (1980) 0.11" NA
Jul 21 67° 89° 52° (1951) 101° (1952) 0.11" NA
Jul 22 68° 89° NA (2001) 100° (1952) 0.11" NA
Jul 23 68° 89° 55° (1950) 105° (1957) 0.11" NA
Jul 24 68° 89° 55° (1985) 102° (1991) 0.11" NA
Jul 25 68° 89° 55° (1952) 95° (1987) 0.11" NA
Jul 26 67° 89° 54° (1976) 95° (1989) 0.1" NA
Jul 27 67° 89° 55° (1975) 97° (1993) 0.1" NA
Jul 28 67° 89° 53° (1977) 100° (1993) 0.1" NA
Jul 29 67° 89° 57° (1978) 98° (1993) 0.1" NA
Jul 30 67° 89° 52° (1956) 97° (1954) 0.1" NA
Jul 31 67° 89° 52° (1956) 102° (1954) 0.1" NA
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