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 | 28.7 | 38.0 | 62.0 | 1989 | 19.3 | -2.0 | 1971 |
2 | 30.0 | 39.4 | 56.5 | 1983 | 20.5 | -4.5 | 1961 |
3 | 28.9 | 38.3 | 63.0 | 1991 | 19.4 | -6.0 | 1961 |
4 | 29.6 | 38.0 | 66.0 | 1991 | 21.3 | -4.0 | 1985 |
5 | 28.6 | 37.4 | 69.5 | 1991 | 19.8 | -6.0 | 1978 |
6 | 28.2 | 38.2 | 52.0 | 1960 | 18.3 | -4.3 | 1993 |
7 | 29.0 | 37.9 | 53.0 | 1951 | 20.1 | -9.0 | 1993 |
8 | 27.4 | 36.8 | 58.0 | 1965 | 18.0 | -1.0 | 1967 |
9 | 27.9 | 38.2 | 60.0 | 1949 | 17.6 | -1.0 | 1967 |
10 | 29.0 | 38.7 | 55.0 | 2001 | 19.4 | -4.5 | 1974 |
11 | 29.8 | 39.5 | 58.0 | 1960 | 20.2 | -3.0 | 1979 |
12 | 27.6 | 37.0 | 56.0 | 1984 | 18.2 | -7.5 | 1979 |
13 | 27.9 | 37.0 | 61.0 | 1951 | 18.8 | -15.5 | 1967 |
14 | 29.7 | 39.5 | 59.0 | 1990 | 20.0 | -2.0 | 1979 |
15 | 31.1 | 41.0 | 64.0 | 1954 | 21.3 | 3.1 | 1994 |
16 | 30.7 | 40.9 | 59.5 | 1976 | 20.5 | 1.0 | 1962 |
17 | 30.2 | 38.8 | 66.5 | 1976 | 21.6 | -1.0 | 1979 |
18 | 31.2 | 39.6 | 64.0 | 1981 | 22.8 | -4.0 | 1979 |
19 | 33.1 | 42.6 | 62.0 | 1997 | 23.5 | -4.0 | 1967 |
20 | 33.2 | 42.5 | 59.7 | 1994 | 24.0 | 3.5 | 1993 |
21 | 33.1 | 42.7 | 64.5 | 2002 | 23.5 | -2.0 | 1978 |
22 | 33.9 | 43.1 | 64.5 | 1991 | 24.7 | 6.0 | 1963 |
23 | 33.8 | 42.2 | 59.0 | 1985 | 25.3 | 6.0 | 1972 |
24 | 33.5 | 42.4 | 62.0 | 1985 | 24.6 | 0.0 | 1968 |
25 | 34.1 | 42.6 | 66.5 | 1976 | 25.6 | 5.0 | 1989 |
26 | 31.9 | 40.6 | 60.0 | 2002 | 23.2 | 1.5 | 1970 |
27 | 32.6 | 42.3 | 64.0 | 1976 | 23.0 | 0.0 | 1970 |
28 | 33.2 | 43.1 | 64.0 | 1976 | 23.3 | 4.0 | 1950 |
29 | 32.8 | 43.5 | 60.0 | 1972 | 22.1 | 9.0 | 1980 |
Mean | 30.6 | 39.9 | 61.0 | 21.3 | -1.5 |