Monthly mean minimum temperatures for Boston, MA


Monthly mean minimum temperatures for  BOSTON WSFO AP         

Year   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec   Tot
1872              18.2  37.5  50.7  61.1  65.4  63.7  56.1  44.4  33.5  15.6  44.6
1873  17.3  19.0  26.4  38.1  46.7  56.7  63.3  61.3  53.3  44.4  25.7  24.6  39.7
1874  22.8  18.6  25.6  30.8  46.4  57.0  63.1  59.0  56.8  44.5  33.3  22.3  40.0
1875  12.5  13.0  23.3  33.7  48.1  56.4  62.3  63.3  50.6  42.1  26.5  21.6  37.8
1876  21.5  18.7  24.6  35.1  45.5  60.0  65.4  61.5  52.6  38.6  35.2  12.8  39.3
1877  15.6  25.2  27.3  37.2  45.9  57.8  63.5  63.9  56.2  43.2  36.8  27.3  41.7
1878  18.2  21.9  31.0  41.8  48.5  55.6  64.5  61.0  55.7  47.4  33.4  23.1  41.8
1879  14.1  15.2  25.7  33.6  50.2  55.1  61.5  60.6  52.4  47.6  30.1  23.5  39.1
1880  25.5  21.2  25.0  36.9  52.7  58.5  62.7  60.1  55.8  41.6  29.8  19.3  40.8
1881  13.1  18.6  31.0  34.5  46.7  52.2  60.7  61.9  59.0  43.9  34.0  29.8  40.4
1882  16.7  21.3  27.1  33.2  41.4  56.4  62.9  61.0  56.6  47.5  31.5  22.6  39.9
1883  15.4  19.2  21.1  35.8  47.4  60.3  61.2  58.6  51.2  39.2  33.9  20.9  38.7
1884  16.2  23.1  26.1  36.8  45.5  56.5  60.0  61.8  57.2  43.8  32.6  26.2  40.5
1885  18.0  12.6  18.5  38.4  45.6  56.2  63.4  60.5  51.0  44.2  37.2  24.7  39.2
1886  18.7  18.1  26.2  40.5  48.2  55.6  62.9  59.5  55.4  44.3  35.5  20.7  40.5
1887  15.7  20.9  24.0  36.0  51.8  57.0  67.0  60.3  51.9  44.1  33.7  25.6  40.7
1888  11.4  19.5  24.7  34.7  45.5  57.2  60.1  61.4  53.5  41.2  36.5  27.8  39.5
1889  29.5  19.0  32.1  40.8  51.0  61.3  62.8  60.9  56.7  42.5  38.9  30.8  43.9
1890  23.6  25.3  27.6  38.3  48.9  56.3  62.9  61.7  56.2  45.6  34.5  17.8  41.6
1891  24.6  24.4  27.3  39.3  47.0  56.6  61.4  63.2  59.5  44.5  34.5  33.4  43.0
1892  20.8  23.0  26.1  39.3  48.7  61.0  64.6  63.6  54.2  45.4  35.2  23.5  42.1
1893  13.3  19.0  27.3  36.8  48.6  57.9  62.5  62.4  52.2  47.7  35.1  23.1  40.5
1894  23.1  19.3  35.1  40.1  49.3  59.4  65.1  60.2  57.7  47.4  31.9  25.5  42.8
1895  21.8  16.6  28.0  38.1  50.5  60.0  61.7  62.7  57.6  41.4  38.3  28.3  42.1
1896  19.2  20.6  24.4  39.1  50.8  57.8  64.0  63.1  54.6  43.7  38.5  23.1  41.6
1897  20.8  24.2  29.3  39.7  49.7  54.0  64.1  61.9  54.2  45.5  33.2  27.7  42.0
1898  21.5  25.8  35.8  37.2  48.8  57.9  64.0  65.4  57.3  47.3  35.7  25.0  43.5
1899  20.0  19.5  27.4  38.8  49.0  60.3  63.6  61.4  53.7  47.3  35.1  29.1  42.1
1900  20.6  21.6  24.5  39.8  45.4  59.1  64.9  63.2  57.6  49.8  37.5  26.2  42.5
1901  20.5  17.4  29.5  39.0  47.6  59.1  65.4  64.0  57.2  45.6  30.9  25.3  41.8
1902  19.8  22.6  36.4  40.9  48.6  54.8  60.7  60.1  56.2  45.7  37.9  20.5  42.0
1903  21.3  24.4  36.4  40.1  49.5  53.4  63.2  58.5  56.0  46.9  33.0  21.3  42.0
1904  14.1  13.8  27.2  36.7  52.2  56.0  63.6  61.1  54.3  42.2  30.9  18.7  39.2
1905  17.7  15.7  29.1  38.2  48.9  56.7  65.4  61.6  54.9  45.7  33.4  27.6  41.2
1906  28.2  21.6  25.0  39.6  49.0  57.6  63.6  64.7  56.6  45.8  35.3  21.5  42.4
1907  19.4  13.0  30.5  35.4  44.7  56.5  64.0  61.7  57.3  41.5  37.4  30.5  41.0
1908  22.5  18.9  30.6  37.9  50.8  60.1  65.4  62.6  57.8  47.6  36.2  25.6  43.0
1909  22.5  24.7  29.9  39.4  48.3  61.0  62.8  61.9  55.4  45.3  39.2  25.1  43.0
1910  24.9  21.3  34.3  43.8  50.5  57.5  66.6  61.7  55.3  47.4  35.8  20.2  43.3
1911  24.0  19.5  27.8  38.0  52.8  57.9  68.2  61.7  55.2  46.0  34.2  33.0  43.2
1912  14.1  20.2  27.6  38.9  50.5  58.1  64.5  61.1  56.0  49.0  38.3  31.8  42.5
1913  30.6  19.1  32.9  41.3  47.5  57.7  64.6  62.3  54.1  51.1  39.3  30.7  44.3
1914  20.9  16.7  29.9  36.8  51.0  58.3  61.1  63.0  55.3  48.6  34.7  23.7  41.7
1915  26.6  25.9  27.3  42.1  48.0  56.5  63.0  61.9  59.2  48.2  38.4  28.1  43.8
1916  24.4  18.0  23.7  38.9  50.5  55.4  65.0  63.7  55.9  46.7  34.9  26.9  42.0
1917  22.8  17.9  30.0  37.9  43.7  57.2  65.6  64.8  52.4  44.2  31.9  15.9  40.4
1918  14.1  17.2  27.8  39.6  53.2  55.9  63.0  62.6  53.5  47.8  38.6  28.3  41.8
1919  25.6  25.4  33.3  39.5  50.7  58.5  66.1  61.2  55.8  47.4  35.6  21.3  43.4
1920  12.5  20.6  30.5  38.0  47.5  57.6  63.4  65.2  57.6  51.0  35.0  29.5  42.4
1921  24.2  25.5  36.7  44.0  50.0  59.3  66.2  61.6  60.1  46.6  35.4  24.1  44.5
1922  20.3  24.3  31.8  39.7  52.0  60.8  64.4  63.4  57.1  46.3  37.4  24.5  43.5
1923  19.5  16.6  25.2  38.4  48.6  59.6  62.2  60.7  56.8  47.5  37.8  34.3  42.3
1924  23.3  19.8  31.6  39.6  48.8  58.2  64.8  64.2  54.4  45.9  37.1  23.4  42.6
1925  19.5  30.8  34.6  41.2  48.4  61.1  64.2  62.3  56.0  41.9  36.0  27.7  43.6
1926  23.7  20.5  27.0  36.2  47.7  55.6  62.6  63.2  54.8  44.6  36.2  21.1  41.1
1927  23.3  26.0  33.6  38.7  47.9  56.6  64.1  59.8  56.5  49.3  41.7  28.1  43.8
1928  26.0  21.3  29.4  37.8  47.9  57.5  65.3  66.1  54.9  47.3  37.3  32.2  43.6
1929  21.2  25.1  33.0  39.7  50.0  59.2  62.9  60.1  56.7  44.5  38.2  26.1  43.1
1930  24.3  25.1  30.7  38.3  50.5  62.8  64.6  62.6  60.3  45.5  38.2  26.9  44.2
1931  23.1  23.0  33.8  41.6  50.5  58.9  66.7  64.7  58.7  50.1  42.1  29.0  45.2
1932  32.4  23.4  28.0  39.2  50.6  57.2  63.5  65.4  57.0  50.0  34.5  30.5  44.3
1933  30.7  25.5  29.8  39.7  52.5  59.7  62.4  64.0  58.1  44.5  29.9  18.8  43.0
1934  21.9   7.9  26.2  39.7  51.0  58.1  64.7  59.5  58.7  43.0  38.3  21.0  40.8
1935  14.8  19.5  29.9  38.5  47.0  57.7  65.4  62.7  53.6  44.9  39.3  20.9  41.2
1936  21.0  15.5  34.4  37.8  50.2  58.2  62.2  61.4  55.2  46.1  31.5  27.0  41.7
1937  29.5  26.6  26.5  38.3  50.1  58.6  64.7  66.3  55.3  44.9  36.7  25.0  43.5
1938  20.8  23.1  30.9  40.2  47.8  58.4  64.2  65.2  54.2  48.6  38.4  27.9  43.3
1939  20.7  23.7  26.1  36.9  48.1  58.2  63.6  66.2  55.6  45.2  33.0  26.4  42.0
1940  16.4  23.2  26.7  36.5  48.8  56.7  63.2  60.3  55.3  42.4  36.3  26.7  41.0
1941  18.9  22.3  26.2  42.4  50.5  59.1  63.8  61.3  55.8  47.1  39.3  27.8  42.9
1942  20.7  19.8  34.3  40.9  52.0  59.4  63.4  63.0  56.9  48.1  36.0  21.7  43.0
1943  19.4  22.4  28.4  35.2  49.4  60.9  65.5  63.1  55.3  46.7  36.5  21.2  42.0
1944  24.8  21.4  26.7  37.5  53.5  58.2  65.1  65.1  57.3  45.4  36.1  23.4  42.9
1945  16.1  23.7  37.6  43.9  47.4  58.0  64.1  62.1  58.4  44.3  38.3  22.2  43.0
1946  20.5  18.6  37.3  38.7  48.7  57.9  62.0  60.6  57.7  48.7  40.5  26.3  43.1
1947  24.3  21.4  30.4  38.6  47.9  56.3  66.5  64.5  56.1  51.6  34.7  23.0  42.9
1948  16.4  18.3  28.9  39.4  47.8  55.5  65.1  65.1  56.2  46.2  43.2  30.0  42.7
1949  27.6  26.8  31.2  42.5  50.7  61.4  67.3  65.5  55.3  50.2  36.0  29.4  45.3
1950  27.6  20.5  24.9  38.6  47.3  58.7  64.5  62.8  53.6  48.2  40.0  29.0  43.0
1951  26.0  26.4  32.8  42.8  49.8  58.0  65.5  62.5  57.0  47.8  34.8  27.5  44.2
1952  24.8  26.1  31.3  42.7  49.2  61.5  68.2  64.2  57.6  44.1  38.6  29.9  44.9
1953  28.0  27.6  32.3  42.1  50.1  60.5  64.4  63.1  57.6  48.2  41.3  32.2  45.6
1954  18.5  28.9  30.9  40.3  49.3  59.0  63.9  61.8  55.9  50.8  37.4  27.5  43.7
1955  22.2  24.9  30.4  42.1  52.3  58.5  67.9  66.5  55.8  47.9  36.4  20.0  43.7
1956  25.5  26.2  27.5  37.9  45.3  59.7  63.7  63.4  54.1  46.4  38.2  28.7  43.0
1957  15.1  27.3  32.3  40.8  50.7  61.5  65.3  61.1  58.6  46.7  40.2  33.2  44.4
1958  24.7  19.0  34.4  41.2  48.6  56.2  64.9  63.8  56.3  45.3  39.1  19.3  42.7
1959  20.8  18.0  29.3  41.0  52.5  56.4  66.1  66.4  59.7  47.9  36.8  30.1  43.8
1960  24.7  28.4  25.8  40.3  52.0  61.0  64.3  64.4  56.9  46.0  40.6  21.8  43.8
1961  17.7  23.9  29.6  38.3  48.2  59.3  64.3  64.3  61.1  49.5  38.6  27.1  43.5
1962  20.6  18.8  31.6  39.7  48.7  59.2  62.3  62.3  54.8  46.8  35.2  22.6  41.9
1963  22.4  17.4  31.9  39.9  49.5  59.7  65.7  61.6  52.8  50.1  41.9  20.3  42.8
1964  24.7  22.0  31.6  38.6  50.2  57.6  63.5  58.3  54.0  44.0  36.7  25.9  42.3
1965  18.0  20.4  29.5  36.4  49.4  57.6  62.3  61.5  55.2  44.4  35.3  29.8  41.6
1966  22.5  24.8  32.5  39.3  49.3  60.4  65.8  63.6  56.2  46.2  40.4  27.6  44.0
1967  28.7  18.8  27.5  36.8  44.1  58.0  66.4  64.2  54.3  46.1  34.2  28.9  42.3
1968  18.2  18.9  32.2  42.4  49.3  58.4  66.5  63.4  59.2  51.2  38.6  24.7  43.6
1969  23.4  25.0  29.5  41.8  50.3  61.3  64.7  65.6  56.5  47.0  39.2  27.9  44.4
1970  16.6  24.1  30.9  41.1  50.8  58.0  65.5  64.6  57.3  48.0  39.4  22.2  43.2
1971  16.6  24.1  30.0  36.5  47.6  59.0  64.4  64.5  60.5  52.4  36.2  28.9  43.4
1972  25.0  21.8  30.1  37.5  49.4  57.9  65.5  62.9  57.7  44.5  36.3  27.1  43.0
1973  23.7  22.9  36.4  41.9  49.6  61.4  66.2  66.9  56.4  48.2  39.5  32.4  45.5
1974  24.6  21.5  30.2  41.7  47.6  56.4  64.1  64.5  56.5  41.0  38.5  32.1  43.2
1975  28.4  25.6  29.9  37.2  52.0  60.1  67.3  65.4  56.5  49.7  44.2  26.4  45.2
1976  18.1  28.4  32.8  45.2  51.0  63.9  65.0  63.7  55.9  45.1  35.0  20.7  43.7
1977  16.7  24.8  36.8  41.4  52.2  59.0  65.7  64.5  57.7  48.5  42.6  27.7  44.8
1978  21.3  20.1  29.6  41.8  52.1  59.0  63.5  65.0  52.8  44.5  37.1  28.5  42.9
1979  25.8  15.8  35.0  41.7  53.7  59.1  66.1  64.7  57.0  45.3  41.2  29.1  44.5
1980  23.2  20.7  29.2  41.2  51.2  57.6  66.9  66.4  58.1  45.1  33.5  19.5  42.7
1981  14.3  28.7  31.7  42.6  51.3  62.4  66.5  63.8  55.8  44.0  37.6  28.5  43.9
1982  15.2  24.3  30.9  38.2  50.8  56.3  66.3  62.6  56.9  46.0  40.1  32.6  43.3
1983  24.8  25.7  33.9  42.7  50.8  61.6  68.7  65.5  61.7  47.8  38.9  24.6  45.6
1984  20.9  31.0  25.9  39.8  49.8  61.3  65.8  66.8  52.7  46.3  37.0  31.9  44.1
1985  17.5  25.5  31.8  40.9  49.8  57.2  65.1  63.5  57.6  47.5  39.0  24.5  43.3
1986  23.1  22.9  31.3  42.1  50.0  56.7  63.5  62.7  55.0  46.0  33.9  29.3  43.0
1987  22.2  21.0  31.7  39.4  48.2  56.9  64.1  62.3  58.2  46.1  36.1  29.8  43.0
1988  20.5  24.7  30.8  40.7  49.9  59.2  64.8  67.3  55.9  43.3  38.7  25.1  43.4
1989  26.4  23.3  29.3  38.2  51.3  60.3  64.4  64.0  57.1  46.8  35.7  14.1  42.6
1990  29.5  25.0  31.4  40.1  47.5  58.3  65.2  66.3  56.9  49.9  40.1  32.6  45.2
1991  22.2  27.8  34.3  42.2  53.2  60.7  66.5  65.6  55.7  48.5  39.2  28.5  45.4
1992  23.8  24.8  28.1  38.6  47.6  58.8  61.5  62.7  56.0  44.7  36.7  28.3  42.6
1993  25.4  19.0  29.5  41.3  52.0  59.1  65.8  65.8  57.4  44.5  37.2  27.6  43.7
1994  13.4  19.7  31.4  42.3  49.3  61.9  68.8  63.8  57.0  47.1  40.6  31.4  43.9
1995  28.1  20.8  32.5  38.3  49.1  60.2  67.1  64.1  55.1  50.3  35.3  25.6  43.9
1996  22.7  24.3  28.9  40.3  48.9  60.3  64.3  64.0  58.1  45.8  33.8  33.0  43.7
1997  21.7  29.0  29.7  38.9  48.0  59.6  64.8  63.5  56.5  45.1  35.9  28.6  43.4
1998  28.1  29.5  34.3  42.1  51.9  57.3  66.1  64.7  58.1  47.3  38.4  31.9  45.8
1999  21.5  26.4  31.5  41.1  50.7  62.0  67.2  63.7  59.9  44.6  40.4  30.7  45.0
2000  19.3  26.9  35.5  40.2  48.5  59.2  62.8  63.4  55.4  46.0  38.4  22.5  43.2
2001  23.7  24.2  29.9  40.7  51.1  62.4  61.9  66.7  57.2  47.4  40.5  34.6  45.0
2002  31.0  28.0  32.6  40.8  48.7  58.0  66.3  67.3  60.6                    48.1