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) 2.59" 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
Dec 1 34° 51° NA (1976) 69° (2001) 0.11" NA
Dec 2 33° 50° NA (1960) 69° (2001) 0.11" NA
Dec 3 33° 50° 10° (1976) 73° (1998) 0.11" NA
Dec 4 33° 49° 14° (1976) 74° (1982) 0.11" NA
Dec 5 32° 49° NA (1976) 75° (2001) 0.11" NA
Dec 6 32° 49° 15° (1957) 77° (1998) 0.11" NA
Dec 7 32° 48° 12° (1977) 75° (1956) 0.11" NA
Dec 8 31° 48° 12° (1977) 72° (1980) 0.11" NA
Dec 9 31° 48° 13° (1989) 69° (1980) 0.11" NA
Dec 10 31° 47° 10° (1989) 63° (1987) 0.11" NA
Dec 11 31° 47° 11° (1958) 67° (1979) 0.11" NA
Dec 12 30° 47° 8° (1988) 68° (1979) 0.11" NA
Dec 13 30° 46° 5° (1960) 68° (1948) 0.11" NA
Dec 14 30° 46° 10° (1960) 64° (1984) 0.11" NA
Dec 15 30° 46° NA (1960) 64° (2001) 0.11" NA
Dec 16 29° 46° 11° (1958) 63° (1984) 0.11" NA
Dec 17 29° 45° 11° (1949) 65° (1984) 0.11" NA
Dec 18 29° 45° 9° (1960) 65° (1984) 0.11" NA
Dec 19 29° 45° 8° (1989) 65° (1990) 0.11" NA
Dec 20 29° 45° 4° (1960) 62° (1957) 0.11" NA
Dec 21 28° 44° 9° (1981) 62° (1956) 0.11" NA
Dec 22 28° 44° 2° (1989) 66° (1949) 0.11" NA
Dec 23 28° 44° -5° (1960) 65° (1949) 0.11" NA
Dec 24 28° 44° 4° (1960) 62° (1990) 0.11" NA
Dec 25 27° 43° -8° (1983) 66° (1955) 0.11" NA
Dec 26 27° 43° 0° (1983) 63° (1982) 0.11" NA
Dec 27 27° 43° 2° (1983) 62° (1949) 0.1" NA
Dec 28 27° 43° 4° (1950) 69° (1984) 0.1" NA
Dec 29 27° 43° 11° (1961) 77° (1984) 0.1" NA
Dec 30 27° 43° 10° (1976) 77° (1984) 0.1" NA
Dec 31 26° 42° 8° (1983) 68° (1992) 0.1" NA
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