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 | 56.9 | 68.4 | 84.5 | 1954 | 45.5 | 32.0 | 1973 |
2 | 57.2 | 68.8 | 81.5 | 1954 | 45.5 | 30.5 | 1972 |
3 | 57.6 | 68.6 | 80.0 | 2000 | 46.6 | 31.5 | 1966 |
4 | 57.3 | 67.3 | 86.0 | 1959 | 47.3 | 31.0 | 1974 |
5 | 56.3 | 67.6 | 85.5 | 1967 | 45.1 | 29.0 | 1965 |
6 | 55.3 | 66.9 | 85.0 | 1997 | 43.7 | 25.0 | 1958 |
7 | 54.4 | 65.5 | 79.0 | 1997 | 43.3 | 25.0 | 1958 |
8 | 54.3 | 65.2 | 77.0 | 1990 | 43.4 | 21.5 | 1954 |
9 | 55.8 | 67.0 | 80.0 | 1949 | 44.6 | 26.0 | 1953 |
10 | 54.3 | 65.0 | 85.0 | 1949 | 43.5 | 25.5 | 1982 |
11 | 53.2 | 64.7 | 81.0 | 1949 | 41.8 | 23.0 | 1982 |
12 | 53.3 | 64.4 | 84.0 | 1962 | 42.3 | 23.0 | 1956 |
13 | 52.8 | 64.1 | 80.5 | 1995 | 41.5 | 24.0 | 1953 |
14 | 53.7 | 66.0 | 79.0 | 1952 | 41.4 | 21.0 | 1953 |
15 | 54.3 | 66.0 | 83.0 | 1956 | 42.7 | 25.0 | 1953 |
16 | 54.0 | 65.9 | 80.0 | 1963 | 42.1 | 25.5 | 1978 |
17 | 52.0 | 63.7 | 78.0 | 1963 | 40.4 | 23.0 | 1978 |
18 | 52.2 | 63.6 | 76.0 | 1968 | 40.8 | 19.5 | 1978 |
19 | 50.9 | 62.0 | 79.5 | 1963 | 39.9 | 23.0 | 1974 |
20 | 49.9 | 61.4 | 76.0 | 1953 | 38.4 | 20.5 | 1972 |
21 | 50.3 | 61.9 | 77.0 | 1963 | 38.8 | 17.0 | 1972 |
22 | 49.8 | 61.6 | 82.5 | 1979 | 38.1 | 21.5 | 1974 |
23 | 50.8 | 62.2 | 78.0 | 1978 | 39.4 | 20.5 | 1982 |
24 | 50.8 | 61.9 | 76.0 | 1963 | 39.8 | 20.5 | 1969 |
25 | 49.7 | 60.4 | 76.0 | 2001 | 39.1 | 21.0 | 1962 |
26 | 49.4 | 59.6 | 76.5 | 1963 | 39.3 | 18.0 | 1952 |
27 | 48.7 | 59.9 | 78.0 | 1963 | 37.5 | 21.0 | 1950 |
28 | 47.8 | 59.4 | 77.0 | 1971 | 36.1 | 21.0 | 1950 |
29 | 47.5 | 58.5 | 76.0 | 1971 | 36.5 | 21.0 | 1970 |
30 | 47.0 | 58.2 | 78.5 | 1961 | 35.8 | 17.0 | 1966 |
31 | 48.1 | 59.2 | 73.0 | 1950 | 36.9 | 13.0 | 1966 |
Mean | 52.4 | 63.7 | 79.6 | 41.2 | 23.1 |