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December Temperature Statistics

The following table lists the daily mean and record temperatures (°F) at Brookhaven National Laboratory for each day of the month. The period covered is from 1949 to 2006.

Maximum Minimum
Day Mean Average High Year Average Low Year
1 36.7 45.9 69.5 2001 27.4 9.0 1976
2 36.3 46.2 61.5 1998 26.3 -0.5 1967
3 37.0 46.9 68.0 1998 27.0 3.0 1976
4 36.7 46.2 72.0 1998 27.1 3.5 1966
5 36.9 45.6 68.5 2001 28.3 3.0 1966
6 37.7 46.5 68.5 2001 28.9 7.5 1976
7 36.6 46.1 76.5 1998 27.1 9.5 1955
8 36.0 44.6 63.0 1951 27.4 6.0 1964
9 35.0 44.5 67.0 1966 25.5 8.0 1949
10 35.1 43.8 60.0 1953 26.3 7.0 1968
11 34.8 43.1 68.0 1971 26.5 -8.0 1958
12 35.0 43.0 60.0 1983 27.0 0.0 1958
13 35.0 43.1 64.0 1983 26.8 -3.0 1982
14 34.0 42.3 58.0 1975 25.6 -7.5 1958
15 33.8 42.5 61.0 1975 25.2 0.0 1960
16 34.5 42.8 65.0 1971 26.2 3.5 1988
17 33.0 42.6 64.0 1984 23.5 5.0 1962
18 31.8 41.1 60.0 1984 22.6 3.5 1980
19 30.7 39.8 57.0 1957 21.6 1.5 1960
20 31.6 40.1 60.0 1957 23.1 4.0 1985
21 32.2 39.9 61.0 1957 24.4 3.0 1955
22 32.0 40.6 58.5 1990 23.4 -3.0 1958
23 33.0 41.4 58.5 1981 24.5 2.0 1960
24 32.7 41.1 57.5 1996 24.3 -4.0 1975
25 31.7 40.7 61.0 1964 22.6 -2.0 1975
26 31.6 40.1 68.0 1982 23.0 -1.0 1980
27 29.1 37.2 62.5 1973 21.0 -13.0 1950
28 30.6 40.2 60.0 1982 21.1 -14.0 1950
29 32.9 41.7 69.0 1984 24.2 4.5 1955
30 31.1 40.1 61.0 1984 22.1 -4.0 1963
31 29.9 39.1 63.0 1965 20.6 -8.5 1963
Mean 33.7 42.5 63.6 24.9 0.5