Thurmont, Maryland
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 22° 39° -27° (1994) 74° (1967) 3.18" 9.5"
February 23° 42° -13° (1996) 78° (2000) 2.8" 9.7"
March 30° 52° -5° (1960) 85° (1998) 4.05" 3.8"
April 39° 63° 15° (1982) 92° (1960) 3.91" 0.7"
May 50° 72° 26° (1968) 94° (1969) 4.34" 0"
June 59° 81° 35° (1997) 101° (1959) 3.92" 0"
July 64° 85° 42° (1979) 103° (1966) 3.65" 0"
August 62° 83° 36° (1982) 103° (1983) 3.4" 0"
September 54° 76° 24° (1963) 98° (1983) 4.24" 0"
October 43° 65° 16° (1969) 90° (2007) 3.38" 0.1"
November 34° 54° 9° (1964) 82° (1971) 3.61" 0.8"
December 26° 43° -19° (1960) 77° (1982) 3.33" 5.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 29° 48° 10° (1976) 68° (2001) 0.13" 0.1"
Dec 2 29° 47° 15° (1971) 66° (1970) 0.12" 0.1"
Dec 3 29° 47° 7° (1976) 73° (1998) 0.13" 0.1"
Dec 4 29° 46° 10° (1966) 77° (1982) 0.13" 0.1"
Dec 5 28° 46° 10° (1976) 76° (2001) 0.12" 0.1"
Dec 6 28° 46° 10° (2007) 76° (1998) 0.13" 0.2"
Dec 7 28° 45° 6° (2002) 75° (1998) 0.13" 0.1"
Dec 8 28° 45° 8° (2002) 69° (1956) 0.12" 0.2"
Dec 9 27° 44° 5° (1989) 71° (1966) 0.12" 0.2"
Dec 10 27° 44° 4° (1989) 68° (1966) 0.12" 0.1"
Dec 11 27° 44° 1° (1968) 66° (1966) 0.12" 0.2"
Dec 12 27° 43° 6° (1962) 66° (1979) 0.12" 0.1"
Dec 13 26° 43° 3° (1988) 64° (1984) 0.11" 0.2"
Dec 14 26° 43° 4° (1989) 62° (1991) 0.11" 0.2"
Dec 15 26° 43° 1° (1960) 65° (1971) 0.1" 0.1"
Dec 16 26° 42° 4° (1968) 65° (1971) 0.11" 0.2"
Dec 17 26° 42° 3° (1989) 64° (1984) 0.1" 0.2"
Dec 18 25° 42° 2° (1960) 64° (1984) 0.1" 0.2"
Dec 19 25° 42° -1° (1989) 62° (1990) 0.1" 0.2"
Dec 20 25° 41° -1° (1960) 61° (1970) 0.09" 0.1"
Dec 21 25° 41° -2° (1981) 59° (1956) 0.09" 0.2"
Dec 22 25° 41° 1° (1989) 61° (1998) 0.1" 0.2"
Dec 23 24° 41° -19° (1960) 64° (1990) 0.1" 0.1"
Dec 24 24° 41° -2° (1989) 65° (1990) 0.09" 0.2"
Dec 25 24° 40° -4° (1983) 66° (1964) 0.1" 0.2"
Dec 26 24° 40° -2° (1980) 64° (1964) 0.1" 0.2"
Dec 27 24° 40° -1° (1989) 63° (1971) 0.09" 0.2"
Dec 28 24° 40° -5° (1960) 66° (1984) 0.09" 0.3"
Dec 29 23° 40° 2° (1961) 76° (1984) 0.09" 0.2"
Dec 30 23° 40° 2° (1976) 71° (1984) 0.08" 0.2"
Dec 31 23° 40° -10° (1963) 66° (1992) 0.09" 0.2"
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