WINTHROP 1 WSW, at

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(459376)

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
1906 ----- z ----- z 61.00 ----- z 86.00 83.00 u 100.00 99.00 90.00 ----- z 58.00 ----- z 100.00
1907 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 84.00 c ----- z ----- z ----- z 84.00
1908 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1909 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 53.00 v 40.00 j 53.00
1910 42.00 a 53.00 65.00 66.00 x 78.00 z 94.00 z 103.00 z 98.00 w ----- z 88.00 y 61.00 p 42.00 103.00
1911 47.00 c 47.00 a 76.00 84.00 92.00 98.00 j 104.00 96.00 a 94.00 d 78.00 a 60.00 a 42.00 104.00
1912 49.00 58.00 66.00 71.00 86.00 95.00 101.00 c 94.00 90.00 71.00 52.00 46.00 101.00
1913 48.00 44.00 52.00 78.00 89.00 92.00 a 101.00 a 101.00 87.00 76.00 65.00 40.00 101.00
1914 50.00 50.00 58.00 80.00 88.00 91.00 101.00 102.00 89.00 75.00 57.00 39.00 102.00
1915 39.00 49.00 71.00 82.00 85.00 94.00 98.00 100.00 90.00 72.00 54.00 45.00 100.00
1916 44.00 48.00 52.00 78.00 82.00 a 97.00 92.00 100.00 90.00 82.00 62.00 43.00 100.00
1917 48.00 45.00 49.00 68.00 80.00 91.00 102.00 101.00 90.00 85.00 66.00 a 61.00 a 102.00
1918 56.00 44.00 ----- z ----- z ----- z ----- z ----- z ----- z 99.00 83.00 58.00 47.00 99.00
1919 47.00 46.00 62.00 78.00 89.00 93.00 105.00 u 100.00 90.00 61.00 w 58.00 45.00 d 105.00
1920 48.00 r 50.00 f 67.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 56.00 r 52.00 c 67.00
1921 ----- z ----- z ----- z ----- z 85.00 90.00 96.00 98.00 77.00 85.00 61.00 46.00 98.00
1922 37.00 40.00 48.00 72.00 87.00 95.00 100.00 99.00 91.00 81.00 53.00 40.00 100.00
1923 44.00 47.00 67.00 78.00 86.00 95.00 100.00 97.00 93.00 84.00 60.00 41.00 100.00
1924 40.00 50.00 58.00 78.00 92.00 101.00 105.00 97.00 93.00 70.00 53.00 51.00 105.00
1925 41.00 46.00 65.00 80.00 83.00 103.00 100.00 99.00 90.00 75.00 54.00 43.00 103.00
1926 36.00 53.00 70.00 89.00 81.00 102.00 103.00 98.00 87.00 70.00 62.00 47.00 103.00
1927 41.00 48.00 60.00 78.00 83.00 87.00 100.00 96.00 80.00 70.00 50.00 48.00 100.00
1928 48.00 48.00 67.00 72.00 91.00 97.00 104.00 96.00 93.00 76.00 54.00 39.00 104.00
1929 32.00 44.00 64.00 77.00 89.00 89.00 104.00 98.00 94.00 76.00 66.00 48.00 104.00
1930 38.00 54.00 79.00 76.00 83.00 85.00 106.00 100.00 90.00 77.00 59.00 44.00 a 106.00
1931 42.00 46.00 61.00 84.00 92.00 97.00 100.00 97.00 88.00 79.00 58.00 41.00 100.00
1932 45.00 51.00 66.00 77.00 79.00 96.00 94.00 97.00 89.00 85.00 54.00 52.00 97.00
1933 43.00 48.00 57.00 80.00 77.00 96.00 101.00 100.00 84.00 78.00 63.00 40.00 101.00
1934 43.00 48.00 66.00 89.00 a 95.00 93.00 104.00 97.00 92.00 79.00 57.00 41.00 104.00
1935 42.00 43.00 55.00 75.00 84.00 87.00 100.00 95.00 92.00 81.00 52.00 37.00 100.00
1936 38.00 43.00 55.00 86.00 92.00 93.00 101.00 97.00 84.00 78.00 53.00 41.00 101.00
1937 26.00 44.00 59.00 71.00 87.00 93.00 98.00 93.00 88.00 79.00 60.00 38.00 98.00
1938 ----- z 42.00 q ----- z ----- z 89.00 99.00 101.00 95.00 97.00 77.00 55.00 41.00 a 101.00
1939 43.00 46.00 65.00 e 81.00 b 91.00 96.00 106.00 99.00 91.00 77.00 58.00 49.00 a 106.00
1940 43.00 50.00 67.00 73.00 87.00 95.00 98.00 98.00 95.00 72.00 52.00 47.00 98.00
1941 38.00 45.00 70.00 78.00 88.00 88.00 103.00 96.00 82.00 71.00 60.00 49.00 103.00
1942 43.00 49.00 65.00 80.00 78.00 93.00 99.00 100.00 92.00 80.00 52.00 41.00 100.00
1943 47.00 46.00 53.00 84.00 81.00 d 90.00 94.00 91.00 h 93.00 85.00 51.00 49.00 94.00
1944 45.00 a 48.00 66.00 77.00 85.00 88.00 97.00 91.00 96.00 81.00 52.00 38.00 97.00
1945 46.00 d 49.00 64.00 74.00 i 87.00 91.00 96.00 97.00 90.00 85.00 a 57.00 40.00 a 97.00
1946 41.00 46.00 62.00 f 83.00 86.00 88.00 96.00 95.00 86.00 70.00 51.00 a 40.00 96.00
1947 41.00 56.00 71.00 80.00 b 93.00 89.00 96.00 ----- z 88.00 80.00 56.00 46.00 96.00
1948 45.00 52.00 66.00 71.00 86.00 a 95.00 a 91.00 a 88.00 a 89.00 a 73.00 b 53.00 38.00 95.00
1949 38.00 47.00 59.00 a 81.00 93.00 93.00 98.00 a 102.00 95.00 71.00 66.00 a 45.00 102.00
1950 38.00 48.00 54.00 72.00 79.00 90.00 a 97.00 a 97.00 a 96.00 b 65.00 51.00 45.00 a 97.00
1951 42.00 a 45.00 57.00 75.00 84.00 88.00 96.00 a 96.00 89.00 77.00 a 57.00 49.00 96.00
1952 38.00 43.00 61.00 82.00 83.00 86.00 100.00 98.00 90.00 84.00 57.00 42.00 100.00
1953 47.00 53.00 a 60.00 72.00 81.00 80.00 96.00 95.00 90.00 75.00 56.00 49.00 96.00
1954 42.00 51.00 a 57.00 b 73.00 89.00 a 84.00 a 92.00 93.00 83.00 68.00 a 61.00 39.00 93.00
1955 35.00 48.00 50.00 68.00 75.00 95.00 96.00 b 94.00 95.00 72.00 54.00 a 40.00 a 96.00
1956 41.00 43.00 50.00 a 80.00 90.00 84.00 99.00 98.00 87.00 a 78.00 50.00 47.00 99.00
1957 32.00 49.00 57.00 l 82.00 89.00 90.00 96.00 89.00 90.00 79.00 62.00 40.00 96.00
1958 42.00 51.00 58.00 76.00 94.00 100.00 98.00 99.00 92.00 87.00 60.00 51.00 100.00
1959 47.00 53.00 54.00 72.00 84.00 91.00 104.00 94.00 b 86.00 79.00 60.00 40.00 104.00
1960 40.00 45.00 66.00 80.00 80.00 89.00 104.00 100.00 90.00 79.00 57.00 36.00 104.00
1961 45.00 50.00 66.00 73.00 84.00 98.00 99.00 105.00 86.00 81.00 52.00 41.00 105.00
1962 46.00 47.00 67.00 79.00 75.00 89.00 99.00 94.00 90.00 76.00 56.00 44.00 99.00
1963 45.00 56.00 64.00 69.00 a 86.00 96.00 90.00 98.00 94.00 78.00 53.00 39.00 98.00
1964 35.00 45.00 63.00 69.00 81.00 86.00 ----- z 92.00 t 87.00 81.00 54.00 36.00 92.00
1965 42.00 50.00 61.00 74.00 86.00 90.00 100.00 101.00 82.00 77.00 62.00 41.00 101.00
1966 39.00 49.00 67.00 76.00 91.00 88.00 90.00 i 101.00 h 92.00 75.00 58.00 45.00 101.00
1967 47.00 54.00 57.00 67.00 84.00 94.00 95.00 104.00 96.00 73.00 57.00 52.00 104.00
1968 43.00 54.00 ----- z 82.00 82.00 b 92.00 b 101.00 98.00 89.00 81.00 52.00 38.00 b 101.00
1969 27.00 a 43.00 61.00 73.00 89.00 97.00 95.00 a 97.00 93.00 d 68.00 b 60.00 b 40.00 a 97.00
1970 38.00 45.00 ----- z 65.00 87.00 95.00 98.00 a 101.00 87.00 84.00 61.00 37.00 c 101.00
1971 50.00 47.00 52.00 a 73.00 85.00 ----- z 102.00 c 103.00 a 80.00 d 78.00 c 48.00 a 34.00 c 103.00
1972 42.00 49.00 c 61.00 70.00 87.00 ----- z 93.00 d 100.00 a 89.00 a 76.00 d 48.00 a ----- z 100.00
1973 41.00 a 49.00 61.00 ----- z ----- z ----- z 99.00 99.00 93.00 69.00 a 51.00 42.00 99.00
1974 43.00 a 45.00 57.00 a ----- z 76.00 96.00 98.00 98.00 92.00 76.00 ----- z 43.00 98.00
1975 43.00 43.00 53.00 70.00 85.00 87.00 102.00 91.00 89.00 79.00 56.00 47.00 102.00
1976 43.00 a 45.00 57.00 75.00 81.00 90.00 96.00 91.00 92.00 81.00 57.00 39.00 c 96.00
1977 49.00 a 59.00 61.00 89.00 82.00 96.00 97.00 102.00 85.00 70.00 52.00 a 41.00 a 102.00
1978 41.00 46.00 67.00 71.00 80.00 95.00 100.00 99.00 82.00 75.00 54.00 a 42.00 100.00
1979 36.00 49.00 70.00 b 80.00 85.00 94.00 104.00 95.00 g 91.00 85.00 a 52.00 a 52.00 104.00
1980 36.00 45.00 59.00 81.00 82.00 a 84.00 99.00 94.00 88.00 83.00 55.00 47.00 99.00
1981 47.00 52.00 66.00 81.00 81.00 89.00 96.00 101.00 96.00 72.00 60.00 42.00 101.00
1982 46.00 48.00 59.00 74.00 86.00 ----- z 99.00 95.00 89.00 75.00 55.00 42.00 99.00
1983 45.00 47.00 60.00 76.00 96.00 89.00 94.00 97.00 81.00 71.00 57.00 36.00 97.00
1984 50.00 45.00 62.00 75.00 88.00 87.00 101.00 96.00 87.00 78.00 48.00 32.00 101.00
1985 36.00 51.00 62.00 75.00 87.00 93.00 102.00 91.00 83.00 71.00 55.00 36.00 102.00
1986 45.00 52.00 70.00 74.00 100.00 100.00 93.00 98.00 91.00 78.00 55.00 40.00 100.00
1987 43.00 50.00 71.00 87.00 91.00 98.00 97.00 97.00 96.00 85.00 65.00 41.00 98.00
1988 43.00 57.00 64.00 83.00 87.00 90.00 99.00 97.00 100.00 86.00 59.00 43.00 100.00
1989 57.00 44.00 55.00 77.00 82.00 90.00 95.00 95.00 89.00 78.00 68.00 40.00 95.00
1990 46.00 53.00 71.00 75.00 83.00 87.00 ----- z 97.00 91.00 78.00 67.00 37.00 97.00
1991 46.00 62.00 67.00 78.00 76.00 85.00 96.00 96.00 89.00 84.00 51.00 42.00 96.00
1992 42.00 51.00 75.00 78.00 92.00 100.00 99.00 99.00 85.00 84.00 57.00 46.00 100.00
1993 41.00 48.00 57.00 67.00 96.00 85.00 85.00 89.00 92.00 83.00 56.00 43.00 96.00
1994 46.00 45.00 77.00 81.00 88.00 91.00 102.00 ----- z 91.00 73.00 42.00 40.00 102.00
1995 41.00 52.00 65.00 72.00 88.00 89.00 94.00 94.00 94.00 67.00 54.00 47.00 94.00
1996 40.00 45.00 61.00 77.00 78.00 85.00 97.00 99.00 89.00 77.00 54.00 35.00 99.00
1997 47.00 51.00 57.00 68.00 88.00 85.00 91.00 97.00 88.00 71.00 60.00 42.00 97.00
1998 45.00 49.00 63.00 78.00 87.00 90.00 103.00 100.00 97.00 79.00 57.00 41.00 103.00
1999 46.00 47.00 60.00 79.00 89.00 92.00 96.00 98.00 88.00 72.00 55.00 54.00 98.00
2000 37.00 46.00 66.00 73.00 78.00 90.00 98.00 98.00 89.00 72.00 52.00 40.00 98.00
2001 43.00 48.00 65.00 79.00 92.00 89.00 99.00 98.00 90.00 76.00 55.00 39.00 99.00
2002 44.00 54.00 59.00 78.00 77.00 95.00 100.00 99.00 90.00 79.00 55.00 39.00 100.00
2003 43.00 48.00 71.00 71.00 86.00 91.00 100.00 100.00 93.00 84.00 52.00 39.00 100.00
2004 42.00 48.00 70.00 79.00 81.00 97.00 95.00 ----- z 90.00 80.00 55.00 47.00 97.00
2005 46.00 58.00 69.00 83.00 90.00 94.00 94.00 96.00 86.00 76.00 ----- z 39.00 96.00
2006 42.00 49.00 61.00 77.00 95.00 97.00 103.00 93.00 93.00 79.00 52.00 42.00 103.00
2007 47.00 50.00 64.00 74.00 87.00 93.00 99.00 96.00 89.00 67.00 62.00 43.00 99.00
2008 39.00 60.00 58.00 72.00 91.00 99.00 93.00 102.00 89.00 80.00 58.00 44.00 102.00
2009 44.00 45.00 57.00 79.00 89.00 89.00 97.00 100.00 94.00 79.00 55.00 41.00 100.00
2010 45.00 52.00 61.00 75.00 80.00 83.00 96.00 94.00 85.00 82.00 59.00 36.00 96.00
2011 45.00 47.00 61.00 62.00 78.00 85.00 92.00 96.00 96.00 70.00 a 53.00 43.00 a 96.00
2012 40.00 48.00 53.00 83.00 88.00 80.00 96.00 96.00 88.00 82.00 57.00 a 44.00 96.00
2013 49.00 47.00 70.00 75.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 75.00
Period of Record Statistics
MEAN 42.66 48.70 62.24 76.60 85.78 91.66 98.31 97.23 89.76 77.24 56.25 42.70 99.99
S.D. 4.93 4.14 6.39 5.39 5.16 4.91 3.85 3.24 4.24 5.14 4.62 4.82 2.74
SKEW -0.45 0.84 0.08 -0.02 0.03 -0.01 -0.42 -0.48 -0.34 -0.22 0.22 0.78 -0.01
MAX 57.00 62.00 79.00 89.00 100.00 103.00 106.00 105.00 100.00 87.00 68.00 61.00 106.00
MIN 26.00 40.00 48.00 62.00 75.00 80.00 85.00 88.00 77.00 65.00 42.00 32.00 94.00
NO YRS 101 101 98 95 100 95 97 94 103 100 100 102 72