Dedham, Massachusetts
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 18° 34° -14° (1896) 68° (1950) 4.78" 15.9"
February 20° 36° -21° (1934) 68° (1985) 4.06" 13"
March 28° 45° -5° (1950) 89° (1998) 4.79" 11.4"
April 37° 56° 6° (1923) 94° (1976) 4.32" 3.8"
May 47° 67° 27° (1911) 93° (2000) 3.79" 0.3"
June 56° 76° 36° (1945) 99° (1919) 3.93" 0"
July 62° 81° 44° (1988) 100° (1977) 3.74" 0"
August 61° 79° 39° (1965) 101° (1975) 4.06" 0"
September 53° 71° 28° (1914) 99° (1953) 4.13" 0"
October 43° 60° 20° (1909) 88° (1963) 4.42" 0.3"
November 34° 49° 5° (1932) 81° (1950) 4.64" 3.1"
December 24° 39° -19° (1933) 74° (1998) 4.56" 10.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 29° 43° 6° (1936) 69° (2001) 0.15" NA
Dec 2 28° 43° 5° (1989) 61° (1998) 0.15" NA
Dec 3 28° 43° 4° (1976) 61° (1950) 0.15" NA
Dec 4 28° 42° -4° (1940) 67° (1998) 0.15" NA
Dec 5 27° 42° -1° (1926) 65° (2001) 0.15" NA
Dec 6 27° 41° 5° (1935) 70° (2001) 0.15" NA
Dec 7 27° 41° 6° (1906) 74° (1998) 0.15" NA
Dec 8 26° 41° -4° (1906) 62° (1966) 0.15" NA
Dec 9 26° 40° -14° (1902) 68° (1966) 0.15" NA
Dec 10 25° 40° -6° (1902) 62° (1946) 0.15" NA
Dec 11 25° 40° -1° (1988) 63° (1911) 0.15" NA
Dec 12 25° 39° -3° (1988) 67° (1979) 0.14" NA
Dec 13 24° 39° 0° (1893) 60° (1984) 0.14" NA
Dec 14 24° 39° -6° (1893) 62° (1901) 0.14" NA
Dec 15 24° 39° 4° (1933) 64° (1975) 0.14" NA
Dec 16 24° 38° -2° (1930) 61° (1971) 0.14" NA
Dec 17 23° 38° -9° (1942) 63° (2000) 0.14" NA
Dec 18 23° 38° -11° (1919) 59° (1928) 0.14" NA
Dec 19 23° 38° -1° (1919) 59° (1899) 0.14" NA
Dec 20 22° 37° -16° (1942) 61° (1957) 0.14" NA
Dec 21 22° 37° -10° (1942) 60° (1957) 0.15" NA
Dec 22 22° 37° -5° (1921) 62° (1994) 0.15" NA
Dec 23 22° 37° -1° (1989) 62° (1990) 0.15" NA
Dec 24 21° 36° -6° (1943) 58° (1996) 0.15" NA
Dec 25 21° 36° -11° (1980) 59° (1964) 0.15" NA
Dec 26 21° 36° -12° (1980) 58° (1982) 0.15" NA
Dec 27 21° 36° -4° (1903) 57° (1949) 0.15" NA
Dec 28 20° 36° -2° (1933) 60° (1982) 0.15" NA
Dec 29 20° 35° -19° (1933) 72° (1984) 0.15" NA
Dec 30 20° 35° -18° (1933) 60° (1984) 0.15" NA
Dec 31 20° 35° -12° (1917) 62° (1965) 0.15" NA
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