WATERTOWN RGNL AP, s

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(398932)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1893 38.00 37.00 51.00 72.00 83.00 a 97.00 104.00 98.00 p 101.00 m 77.00 h 72.00 46.00 104.00
1894 40.00 43.00 78.00 83.00 a 96.00 96.00 b ----- z ----- z ----- z ----- z 56.00 o 52.00 96.00
1895 50.00 b ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 50.00
1896 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1897 ----- z ----- z 55.00 b 82.00 84.00 91.00 a 94.00 96.00 93.00 78.00 66.00 44.00 96.00
1898 38.00 54.00 64.00 82.00 87.00 92.00 93.00 94.00 94.00 77.00 67.00 47.00 94.00
1899 45.00 47.00 55.00 86.00 85.00 87.00 97.00 91.00 86.00 77.00 67.00 51.00 97.00
1900 56.00 45.00 63.00 80.00 93.00 93.00 97.00 99.00 86.00 80.00 65.00 55.00 b 99.00
1901 49.00 a 48.00 64.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 64.00
1902 43.00 c 56.00 b ----- z 81.00 80.00 a 86.00 a 96.00 88.00 h 83.00 n 77.00 a 54.00 b 42.00 a 96.00
1903 41.00 39.00 63.00 75.00 a 79.00 86.00 92.00 c 89.00 a 84.00 73.00 b 69.00 a 46.00 a 92.00
1904 36.00 38.00 58.00 b 78.00 a 84.00 86.00 89.00 a 93.00 83.00 b 76.00 69.00 51.00 93.00
1905 33.00 b 54.00 70.00 75.00 78.00 86.00 b 96.00 93.00 89.00 84.00 67.00 b 50.00 96.00
1906 45.00 f 54.00 a 52.00 82.00 a 89.00 85.00 85.00 93.00 88.00 75.00 54.00 46.00 93.00
1907 35.00 a 48.00 71.00 a 65.00 c 77.00 b 83.00 i 94.00 c 91.00 b 84.00 79.00 f 59.00 58.00 94.00
1908 46.00 41.00 51.00 83.00 a 81.00 85.00 b 91.00 e 95.00 96.00 79.00 67.00 41.00 96.00
1909 40.00 44.00 57.00 a 72.00 91.00 91.00 92.00 95.00 f 87.00 86.00 c 74.00 40.00 95.00
1910 36.00 38.00 82.00 94.00 84.00 94.00 98.00 93.00 88.00 88.00 ----- z 47.00 98.00
1911 41.00 44.00 71.00 e 77.00 93.00 98.00 a 100.00 94.00 93.00 70.00 53.00 46.00 100.00
1912 34.00 49.00 59.00 81.00 84.00 95.00 94.00 96.00 95.00 b 84.00 76.00 49.00 96.00
1913 51.00 64.00 62.00 82.00 90.00 93.00 92.00 98.00 98.00 88.00 62.00 57.00 98.00
1914 44.00 43.00 64.00 80.00 87.00 85.00 98.00 96.00 90.00 83.00 72.00 49.00 98.00
1915 40.00 45.00 46.00 84.00 86.00 83.00 90.00 87.00 85.00 78.00 66.00 47.00 90.00
1916 35.00 44.00 64.00 72.00 93.00 85.00 96.00 97.00 89.00 80.00 68.00 57.00 97.00
1917 42.00 50.00 65.00 68.00 89.00 90.00 108.00 a 92.00 a 82.00 70.00 72.00 51.00 108.00
1918 43.00 54.00 73.00 69.00 90.00 94.00 93.00 94.00 86.00 82.00 60.00 56.00 94.00
1919 51.00 39.00 67.00 73.00 87.00 91.00 99.00 91.00 89.00 79.00 56.00 46.00 99.00
1920 51.00 38.00 68.00 61.00 84.00 93.00 95.00 91.00 92.00 86.00 55.00 47.00 95.00
1921 52.00 60.00 82.00 81.00 86.00 97.00 96.00 97.00 89.00 81.00 63.00 55.00 97.00
1922 42.00 38.00 52.00 71.00 82.00 94.00 95.00 99.00 97.00 90.00 56.00 45.00 99.00
1923 47.00 41.00 57.00 83.00 84.00 91.00 94.00 93.00 94.00 78.00 62.00 56.00 94.00
1924 48.00 55.00 53.00 85.00 80.00 83.00 89.00 90.00 83.00 83.00 65.00 46.00 90.00
1925 41.00 51.00 78.00 84.00 92.00 91.00 96.00 97.00 97.00 62.00 58.00 47.00 97.00
1926 40.00 50.00 67.00 84.00 95.00 97.00 101.00 98.00 89.00 72.00 61.00 39.00 101.00
1927 41.00 46.00 62.00 80.00 80.00 94.00 89.00 88.00 94.00 85.00 58.00 33.00 94.00
1928 42.00 45.00 80.00 79.00 93.00 85.00 94.00 100.00 85.00 85.00 58.00 53.00 100.00
1929 42.00 31.00 61.00 80.00 84.00 96.00 100.00 100.00 98.00 79.00 54.00 48.00 100.00
1930 40.00 65.00 66.00 83.00 86.00 96.00 106.00 104.00 89.00 83.00 71.00 52.00 106.00
1931 56.00 60.00 61.00 89.00 95.00 107.00 106.00 99.00 104.00 84.00 77.00 44.00 107.00
1932 38.00 58.00 67.00 75.00 94.00 95.00 101.00 99.00 90.00 83.00 64.00 54.00 101.00
1933 50.00 54.00 68.00 74.00 90.00 106.00 108.00 103.00 101.00 89.00 69.00 55.00 108.00
1934 50.00 58.00 67.00 89.00 106.00 96.00 110.00 105.00 88.00 88.00 68.00 41.00 110.00
1935 43.00 50.00 69.00 69.00 77.00 87.00 101.00 97.00 95.00 77.00 56.00 44.00 101.00
1936 34.00 38.00 58.00 84.00 92.00 106.00 105.00 105.00 99.00 83.00 52.00 41.00 106.00
1937 31.00 38.00 53.00 70.00 90.00 100.00 100.00 102.00 95.00 82.00 68.00 47.00 102.00
1938 38.00 39.00 64.00 82.00 82.00 95.00 98.00 101.00 93.00 90.00 71.00 49.00 101.00
1939 43.00 41.00 81.00 89.00 94.00 91.00 102.00 93.00 96.00 85.00 69.00 69.00 102.00
1940 36.00 45.00 49.00 77.00 e 87.00 c 96.00 109.00 96.00 92.00 80.00 60.00 41.00 c 109.00
1941 39.00 32.00 64.00 75.00 90.00 92.00 103.00 c 97.00 91.00 77.00 65.00 64.00 103.00
1942 54.00 47.00 63.00 80.00 83.00 84.00 94.00 91.00 88.00 84.00 64.00 f 37.00 94.00
1943 36.00 49.00 81.00 75.00 93.00 94.00 98.00 96.00 88.00 81.00 49.00 49.00 98.00
1944 56.00 43.00 50.00 64.00 88.00 97.00 96.00 94.00 85.00 78.00 66.00 41.00 97.00
1945 38.00 41.00 73.00 78.00 79.00 88.00 96.00 95.00 99.00 80.00 64.00 40.00 99.00
1946 35.00 44.00 79.00 81.00 83.00 96.00 94.00 96.00 85.00 74.00 58.00 47.00 96.00
1947 50.00 47.00 63.00 78.00 80.00 85.00 94.00 104.00 97.00 90.00 49.00 36.00 104.00
1948 40.00 41.00 58.00 82.00 86.00 87.00 98.00 95.00 90.00 75.00 62.00 51.00 98.00
1949 46.00 49.00 54.00 80.00 92.00 90.00 99.00 96.00 85.00 76.00 68.00 46.00 99.00
1950 36.00 43.00 58.00 a 68.00 92.00 93.00 89.00 90.00 89.00 85.00 65.00 43.00 93.00
1951 38.00 49.00 46.00 80.00 80.00 81.00 91.00 90.00 80.00 91.00 56.00 48.00 91.00
1952 40.00 39.00 43.00 85.00 86.00 95.00 92.00 96.00 96.00 73.00 67.00 44.00 96.00
1953 40.00 39.00 62.00 76.00 88.00 96.00 93.00 92.00 89.00 88.00 71.00 40.00 96.00
1954 36.00 53.00 50.00 83.00 81.00 89.00 98.00 94.00 86.00 74.00 69.00 44.00 98.00
1955 41.00 40.00 66.00 80.00 89.00 88.00 99.00 99.00 96.00 84.00 63.00 37.00 99.00
1956 41.00 34.00 53.00 71.00 84.00 98.00 92.00 89.00 93.00 82.00 60.00 50.00 98.00
1957 33.00 44.00 56.00 79.00 83.00 85.00 99.00 99.00 85.00 77.00 55.00 47.00 99.00
1958 52.00 66.00 55.00 85.00 89.00 94.00 89.00 100.00 92.00 88.00 68.00 41.00 100.00
1959 39.00 39.00 64.00 82.00 95.00 99.00 97.00 97.00 97.00 72.00 52.00 49.00 99.00
1960 37.00 37.00 45.00 79.00 83.00 87.00 98.00 93.00 95.00 78.00 66.00 44.00 98.00
1961 41.00 45.00 67.00 78.00 85.00 94.00 92.00 97.00 93.00 85.00 67.00 54.00 97.00
1962 45.00 47.00 53.00 92.00 84.00 86.00 90.00 94.00 84.00 81.00 64.00 56.00 94.00
1963 52.00 55.00 76.00 76.00 85.00 99.00 90.00 93.00 87.00 90.00 59.00 45.00 99.00
1964 48.00 54.00 50.00 86.00 92.00 96.00 ----- z 99.00 90.00 77.00 68.00 37.00 99.00
1965 39.00 45.00 42.00 83.00 86.00 85.00 93.00 102.00 86.00 71.00 74.00 49.00 102.00
1966 40.00 48.00 72.00 71.00 89.00 95.00 108.00 93.00 85.00 82.00 50.00 46.00 108.00
1967 44.00 46.00 77.00 72.00 91.00 89.00 96.00 92.00 a 87.00 84.00 61.00 51.00 96.00
1968 45.00 37.00 75.00 87.00 85.00 96.00 94.00 95.00 87.00 78.00 55.00 44.00 96.00
1969 36.00 36.00 46.00 72.00 92.00 89.00 96.00 a 93.00 92.00 72.00 63.00 55.00 96.00
1970 35.00 45.00 43.00 81.00 88.00 95.00 96.00 96.00 99.00 86.00 54.00 45.00 99.00
1971 34.00 45.00 68.00 79.00 84.00 94.00 95.00 98.00 93.00 73.00 64.00 38.00 98.00
1972 35.00 37.00 52.00 70.00 87.00 87.00 90.00 95.00 92.00 78.00 57.00 43.00 95.00
1973 44.00 46.00 58.00 76.00 82.00 92.00 98.00 100.00 86.00 78.00 60.00 45.00 100.00
1974 45.00 45.00 58.00 80.00 86.00 98.00 98.00 94.00 91.00 79.00 61.00 49.00 98.00
1975 40.00 36.00 59.00 56.00 85.00 90.00 101.00 96.00 90.00 83.00 73.00 41.00 101.00
1976 41.00 60.00 70.00 81.00 79.00 94.00 103.00 100.00 100.00 84.00 66.00 44.00 103.00
1977 32.00 54.00 67.00 85.00 89.00 90.00 97.00 88.00 87.00 72.00 57.00 41.00 97.00
1978 25.00 34.00 66.00 67.00 85.00 90.00 97.00 96.00 97.00 78.00 73.00 38.00 97.00
1979 23.00 35.00 40.00 71.00 88.00 100.00 90.00 95.00 94.00 70.00 65.00 51.00 100.00
1980 47.00 37.00 58.00 95.00 87.00 89.00 95.00 95.00 94.00 86.00 66.00 48.00 95.00
1981 65.00 57.00 67.00 81.00 86.00 90.00 94.00 92.00 93.00 72.00 63.00 41.00 94.00
1982 31.00 55.00 58.00 81.00 85.00 89.00 98.00 98.00 88.00 73.00 57.00 53.00 98.00
1983 45.00 57.00 59.00 70.00 85.00 95.00 98.00 100.00 97.00 78.00 57.00 26.00 100.00
1984 41.00 b 49.00 49.00 74.00 82.00 86.00 96.00 98.00 93.00 74.00 61.00 47.00 98.00
1985 38.00 55.00 64.00 90.00 87.00 90.00 ----- z ----- z 85.00 72.00 60.00 36.00 90.00
1986 43.00 43.00 74.00 74.00 86.00 92.00 93.00 89.00 79.00 75.00 57.00 50.00 93.00
1987 49.00 59.00 73.00 86.00 91.00 97.00 99.00 96.00 86.00 80.00 61.00 41.00 99.00
1988 41.00 52.00 69.00 82.00 89.00 105.00 104.00 101.00 93.00 79.00 55.00 54.00 105.00
1989 55.00 40.00 69.00 78.00 83.00 95.00 99.00 93.00 86.00 81.00 62.00 44.00 99.00
1990 52.00 52.00 66.00 87.00 82.00 92.00 96.00 91.00 96.00 81.00 71.00 57.00 96.00
1991 40.00 56.00 70.00 86.00 89.00 91.00 99.00 96.00 89.00 85.00 56.00 46.00 99.00
1992 45.00 56.00 66.00 92.00 89.00 88.00 84.00 91.00 82.00 87.00 47.00 36.00 92.00
1993 39.00 36.00 62.00 68.00 77.00 85.00 90.00 90.00 82.00 89.00 53.00 38.00 90.00
1994 33.00 41.00 61.00 80.00 86.00 90.00 89.00 89.00 88.00 70.00 60.00 47.00 90.00
1995 39.00 45.00 69.00 60.00 77.00 93.00 94.00 94.00 87.00 83.00 53.00 48.00 94.00
1996 45.00 53.00 62.00 78.00 g ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 78.00
1997 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1998 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1999 ----- z ----- z 69.00 71.00 84.00 87.00 97.00 96.00 85.00 82.00 70.00 a 53.00 97.00
2000 43.00 58.00 a 74.00 80.00 89.00 97.00 95.00 94.00 90.00 83.00 66.00 35.00 97.00
2001 41.00 a 37.00 41.00 85.00 90.00 96.00 96.00 94.00 91.00 81.00 73.00 46.00 96.00
2002 50.00 57.00 59.00 84.00 88.00 99.00 102.00 90.00 93.00 71.00 63.00 51.00 a 102.00
2003 47.00 a 42.00 74.00 89.00 82.00 88.00 92.00 97.00 92.00 86.00 57.00 41.00 97.00
2004 45.00 45.00 38.00 z 87.00 89.00 84.00 91.00 88.00 89.00 76.00 68.00 49.00 91.00
2005 43.00 59.00 70.00 78.00 81.00 94.00 99.00 97.00 90.00 82.00 67.00 39.00 99.00
2006 42.00 41.00 65.00 82.00 92.00 91.00 103.00 91.00 83.00 83.00 74.00 55.00 103.00
2007 36.00 41.00 67.00 77.00 87.00 91.00 100.00 91.00 90.00 86.00 63.00 34.00 100.00
2008 41.00 38.00 52.00 74.00 79.00 85.00 94.00 86.00 87.00 70.00 72.00 42.00 94.00
2009 42.00 40.00 60.00 87.00 94.00 90.00 83.00 90.00 82.00 63.00 64.00 43.00 94.00
2010 34.00 33.00 70.00 79.00 87.00 86.00 93.00 94.00 82.00 84.00 68.00 37.00 94.00
2011 35.00 43.00 43.00 71.00 85.00 94.00 96.00 94.00 90.00 83.00 58.00 51.00 96.00
2012 57.00 46.00 82.00 81.00 92.00 91.00 97.00 98.00 91.00 77.00 63.00 56.00 98.00
2013 38.00 36.00 52.00 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 52.00
Period of Record Statistics
MEAN 41.96 46.12 62.30 78.75 86.57 91.88 96.23 95.06 90.13 79.90 62.87 46.44 98.21
S.D. 6.83 7.96 10.03 7.16 4.95 5.22 5.17 4.06 5.05 5.93 6.65 6.74 4.11
SKEW 0.41 0.38 -0.14 -0.47 0.41 0.42 0.31 0.22 0.22 -0.41 -0.14 0.16 0.49
MAX 65.00 66.00 82.00 95.00 106.00 107.00 110.00 105.00 104.00 91.00 77.00 69.00 110.00
MIN 23.00 31.00 40.00 56.00 77.00 81.00 83.00 86.00 79.00 62.00 47.00 26.00 90.00
NO YRS 115 115 115 114 114 113 111 109 111 111 111 114 95