DAYTON 1 WSW, WASHINGTON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(452030)

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 ----- z ----- z ----- z 66.00 80.00 89.00 97.00 e ----- z 97.00 72.00 61.00 59.00 97.00
1894 59.00 52.00 66.00 ----- z ----- z 92.00 100.00 101.00 89.00 ----- z ----- z ----- z 101.00
1895 ----- z ----- z ----- z 83.00 ----- z ----- z ----- z 99.00 81.00 81.00 ----- z ----- z 99.00
1896 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 65.00 60.00 65.00
1897 62.00 54.00 65.00 83.00 95.00 88.00 ----- z 101.00 87.00 77.00 72.00 d 61.00 101.00
1898 49.00 66.00 66.00 80.00 84.00 93.00 ----- z ----- z 92.00 74.00 60.00 60.00 93.00
1899 58.00 56.00 59.00 76.00 o 78.00 87.00 97.00 91.00 92.00 77.00 68.00 59.00 97.00
1900 58.00 57.00 71.00 79.00 87.00 95.00 97.00 103.00 85.00 79.00 63.00 63.00 103.00
1901 55.00 60.00 84.00 70.00 85.00 92.00 104.00 105.00 e ----- z ----- z ----- z ----- z 105.00
1902 65.00 71.00 ----- z 72.00 86.00 90.00 ----- z ----- z ----- z ----- z ----- z ----- z 90.00
1903 ----- z ----- z 72.00 74.00 94.00 93.00 97.00 97.00 83.00 78.00 79.00 63.00 97.00
1904 56.00 62.00 64.00 83.00 ----- z 95.00 98.00 102.00 94.00 86.00 75.00 59.00 102.00
1905 62.00 65.00 74.00 80.00 82.00 83.00 103.00 99.00 94.00 75.00 68.00 51.00 103.00
1906 61.00 61.00 70.00 89.00 91.00 89.00 99.00 95.00 ----- z ----- z ----- z ----- z 99.00
1907 ----- z ----- z ----- z ----- z 86.00 87.00 93.00 92.00 88.00 88.00 63.00 60.00 93.00
1908 55.00 56.00 d 66.00 d 76.00 e 90.00 b 96.00 a 99.00 94.00 e 91.00 85.00 77.00 56.00 99.00
1909 58.00 63.00 66.00 70.00 84.00 94.00 95.00 96.00 89.00 78.00 66.00 53.00 96.00
1910 59.00 53.00 72.00 ----- z 92.00 96.00 94.00 96.00 81.00 82.00 66.00 56.00 96.00
1911 56.00 51.00 77.00 81.00 84.00 93.00 100.00 91.00 85.00 88.00 63.00 52.00 100.00
1912 63.00 55.00 68.00 78.00 88.00 92.00 95.00 94.00 80.00 74.00 68.00 56.00 95.00
1913 54.00 63.00 61.00 79.00 85.00 89.00 97.00 95.00 89.00 76.00 60.00 58.00 97.00
1914 65.00 58.00 66.00 73.00 83.00 86.00 97.00 98.00 88.00 79.00 63.00 52.00 98.00
1915 53.00 64.00 73.00 85.00 83.00 95.00 100.00 107.00 88.00 74.00 67.00 67.00 107.00
1916 55.00 56.00 69.00 76.00 82.00 100.00 97.00 102.00 93.00 84.00 66.00 56.00 102.00
1917 57.00 57.00 57.00 66.00 83.00 93.00 105.00 100.00 94.00 f 89.00 73.00 64.00 105.00
1918 70.00 66.00 72.00 78.00 87.00 99.00 105.00 98.00 92.00 84.00 60.00 66.00 105.00
1919 65.00 56.00 75.00 77.00 90.00 91.00 105.00 100.00 89.00 81.00 70.00 61.00 105.00
1920 59.00 61.00 70.00 75.00 83.00 96.00 104.00 105.00 93.00 85.00 64.00 60.00 105.00
1921 59.00 68.00 66.00 74.00 87.00 97.00 100.00 100.00 89.00 85.00 70.00 68.00 100.00
1922 46.00 52.00 62.00 79.00 92.00 102.00 107.00 95.00 93.00 74.00 57.00 60.00 107.00
1923 59.00 53.00 76.00 81.00 86.00 92.00 101.00 93.00 88.00 81.00 55.00 53.00 101.00
1924 63.00 62.00 55.00 76.00 91.00 101.00 98.00 94.00 95.00 79.00 58.00 61.00 101.00
1925 56.00 59.00 66.00 83.00 86.00 99.00 99.00 96.00 85.00 75.00 59.00 62.00 99.00
1926 56.00 66.00 73.00 89.00 86.00 98.00 104.00 99.00 83.00 76.00 61.00 64.00 104.00
1927 55.00 57.00 66.00 79.00 84.00 93.00 101.00 94.00 80.00 83.00 62.00 57.00 101.00
1928 53.00 53.00 74.00 79.00 97.00 105.00 107.00 96.00 96.00 77.00 65.00 59.00 107.00
1929 45.00 44.00 70.00 72.00 91.00 97.00 103.00 98.00 94.00 84.00 62.00 59.00 103.00
1930 57.00 66.00 68.00 78.00 82.00 92.00 103.00 102.00 95.00 71.00 65.00 48.00 103.00
1931 66.00 a 58.00 63.00 79.00 94.00 95.00 106.00 96.00 93.00 85.00 68.00 59.00 106.00
1932 52.00 67.00 70.00 80.00 82.00 95.00 98.00 100.00 94.00 85.00 68.00 56.00 100.00
1933 55.00 55.00 63.00 77.00 87.00 97.00 100.00 103.00 88.00 84.00 68.00 64.00 103.00
1934 60.00 65.00 70.00 89.00 97.00 96.00 104.00 97.00 95.00 88.00 65.00 58.00 104.00
1935 67.00 59.00 69.00 71.00 85.00 91.00 106.00 96.00 95.00 89.00 61.00 58.00 106.00
1936 51.00 60.00 67.00 91.00 99.00 101.00 103.00 99.00 91.00 84.00 66.00 61.00 103.00
1937 43.00 60.00 66.00 75.00 91.00 98.00 103.00 98.00 95.00 79.00 69.00 59.00 103.00
1938 55.00 51.00 66.00 79.00 88.00 90.00 102.00 96.00 96.00 82.00 60.00 62.00 102.00
1939 63.00 55.00 73.00 85.00 90.00 99.00 105.00 99.00 91.00 79.00 66.00 69.00 105.00
1940 57.00 56.00 72.00 76.00 90.00 100.00 102.00 106.00 95.00 85.00 57.00 62.00 106.00
1941 55.00 65.00 76.00 82.00 92.00 94.00 108.00 97.00 81.00 72.00 68.00 65.00 108.00
1942 57.00 52.00 77.00 83.00 91.00 94.00 100.00 103.00 95.00 85.00 62.00 63.00 103.00
1943 53.00 a 60.00 66.00 83.00 80.00 88.00 99.00 95.00 93.00 92.00 61.00 58.00 99.00
1944 60.00 57.00 69.00 82.00 88.00 96.00 101.00 a 93.00 99.00 81.00 63.00 63.00 101.00
1945 59.00 60.00 62.00 76.00 84.00 91.00 99.00 99.00 91.00 83.00 68.00 58.00 99.00
1946 54.00 61.00 73.00 93.00 84.00 92.00 103.00 100.00 86.00 70.00 61.00 a 57.00 103.00
1947 53.00 61.00 71.00 81.00 92.00 89.00 100.00 95.00 94.00 80.00 70.00 59.00 100.00
1948 53.00 64.00 66.00 76.00 88.00 99.00 93.00 90.00 96.00 77.00 67.00 52.00 99.00
1949 51.00 56.00 63.00 82.00 90.00 94.00 100.00 96.00 95.00 69.00 68.00 58.00 100.00
1950 52.00 a 64.00 59.00 71.00 84.00 94.00 98.00 98.00 100.00 79.00 64.00 63.00 100.00
1951 56.00 57.00 67.00 78.00 91.00 92.00 104.00 104.00 90.00 80.00 58.00 59.00 104.00
1952 52.00 61.00 73.00 84.00 88.00 92.00 104.00 99.00 99.00 85.00 66.00 59.00 104.00
1953 65.00 61.00 75.00 77.00 86.00 81.00 102.00 103.00 105.00 83.00 68.00 56.00 105.00
1954 59.00 63.00 67.00 76.00 92.00 92.00 98.00 100.00 91.00 78.00 67.00 60.00 100.00
1955 50.00 55.00 65.00 73.00 80.00 92.00 100.00 93.00 95.00 78.00 63.00 62.00 100.00
1956 58.00 56.00 67.00 82.00 91.00 89.00 100.00 98.00 88.00 77.00 60.00 59.00 100.00
1957 49.00 61.00 63.00 85.00 90.00 93.00 93.00 88.00 89.00 70.00 62.00 60.00 93.00
1958 60.00 71.00 65.00 71.00 95.00 99.00 105.00 106.00 99.00 86.00 73.00 65.00 106.00
1959 64.00 52.00 66.00 77.00 91.00 93.00 104.00 96.00 a 94.00 78.00 68.00 61.00 104.00
1960 60.00 60.00 75.00 76.00 83.00 92.00 109.00 98.00 93.00 87.00 64.00 55.00 109.00
1961 64.00 61.00 66.00 74.00 92.00 107.00 102.00 114.00 86.00 85.00 60.00 59.00 114.00
1962 60.00 67.00 64.00 82.00 71.00 99.00 103.00 98.00 93.00 79.00 64.00 57.00 103.00
1963 55.00 70.00 73.00 75.00 88.00 96.00 92.00 101.00 99.00 88.00 69.00 51.00 101.00
1964 64.00 60.00 79.00 69.00 85.00 90.00 103.00 97.00 94.00 78.00 64.00 58.00 103.00
1965 59.00 68.00 65.00 78.00 84.00 92.00 100.00 105.00 83.00 85.00 80.00 65.00 105.00
1966 62.00 61.00 78.00 75.00 98.00 91.00 96.00 97.00 96.00 82.00 65.00 58.00 98.00
1967 60.00 a 65.00 69.00 65.00 85.00 97.00 100.00 105.00 101.00 85.00 68.00 54.00 105.00
1968 69.00 64.00 72.00 84.00 86.00 94.00 107.00 97.00 95.00 78.00 63.00 63.00 107.00
1969 50.00 53.00 72.00 79.00 91.00 95.00 98.00 98.00 95.00 77.00 69.00 63.00 98.00
1970 55.00 i 56.00 63.00 69.00 85.00 a 102.00 104.00 106.00 86.00 84.00 64.00 60.00 106.00
1971 62.00 67.00 59.00 78.00 90.00 92.00 104.00 105.00 89.00 87.00 67.00 62.00 105.00
1972 47.00 z 62.00 77.00 77.00 96.00 98.00 101.00 106.00 92.00 77.00 63.00 60.00 106.00
1973 63.00 65.00 65.00 74.00 94.00 ----- z 105.00 d 100.00 97.00 76.00 65.00 60.00 105.00
1974 64.00 58.00 68.00 74.00 77.00 97.00 102.00 103.00 95.00 ----- z 65.00 59.00 103.00
1975 58.00 a 58.00 62.00 70.00 85.00 92.00 109.00 97.00 94.00 90.00 79.00 62.00 109.00
1976 65.00 61.00 68.00 79.00 86.00 100.00 101.00 95.00 98.00 86.00 67.00 60.00 101.00
1977 56.00 64.00 71.00 93.00 79.00 95.00 101.00 107.00 87.00 77.00 69.00 57.00 107.00
1978 55.00 59.00 74.00 73.00 81.00 93.00 99.00 104.00 90.00 80.00 70.00 50.00 104.00
1979 44.00 58.00 69.00 77.00 92.00 99.00 106.00 99.00 98.00 b 89.00 b 64.00 60.00 106.00
1980 59.00 62.00 61.00 86.00 a 89.00 83.00 a 103.00 100.00 95.00 90.00 66.00 68.00 103.00
1981 62.00 63.00 70.00 85.00 85.00 86.00 100.00 c 106.00 100.00 78.00 74.00 63.00 106.00
1982 60.00 65.00 65.00 80.00 85.00 99.00 105.00 104.00 93.00 75.00 62.00 62.00 105.00
1983 64.00 66.00 65.00 78.00 101.00 94.00 102.00 104.00 92.00 71.00 70.00 49.00 104.00
1984 64.00 57.00 69.00 85.00 90.00 92.00 102.00 108.00 91.00 87.00 66.00 48.00 108.00
1985 34.00 a 53.00 68.00 81.00 95.00 98.00 105.00 98.00 78.00 72.00 63.00 46.00 105.00
1986 61.00 71.00 69.00 80.00 96.00 97.00 99.00 104.00 90.00 80.00 61.00 50.00 104.00
1987 56.00 56.00 71.00 90.00 93.00 102.00 101.00 101.00 100.00 87.00 66.00 62.00 102.00
1988 57.00 65.00 68.00 81.00 93.00 95.00 102.00 104.00 99.00 85.00 74.00 59.00 104.00
1989 58.00 53.00 67.00 83.00 85.00 93.00 97.00 101.00 92.00 79.00 71.00 62.00 101.00
1990 63.00 60.00 67.00 80.00 89.00 94.00 107.00 108.00 97.00 81.00 69.00 60.00 108.00
1991 58.00 65.00 68.00 74.00 73.00 87.00 100.00 100.00 93.00 86.00 57.00 56.00 100.00
1992 65.00 66.00 71.00 83.00 94.00 105.00 100.00 104.00 87.00 86.00 58.00 57.00 105.00
1993 59.00 53.00 70.00 70.00 96.00 93.00 95.00 96.00 93.00 84.00 63.00 64.00 96.00
1994 60.00 66.00 75.00 82.00 88.00 98.00 106.00 102.00 89.00 76.00 60.00 62.00 106.00
1995 61.00 74.00 67.00 72.00 91.00 88.00 99.00 94.00 96.00 76.00 69.00 64.00 99.00
1996 62.00 58.00 63.00 80.00 76.00 90.00 105.00 101.00 92.00 82.00 67.00 54.00 105.00
1997 55.00 66.00 72.00 76.00 86.00 89.00 97.00 101.00 93.00 89.00 66.00 58.00 101.00
1998 57.00 62.00 71.00 87.00 88.00 92.00 105.00 110.00 102.00 81.00 65.00 61.00 110.00
1999 58.00 55.00 70.00 79.00 90.00 103.00 104.00 101.00 90.00 76.00 77.00 59.00 104.00
2000 54.00 60.00 70.00 82.00 85.00 92.00 101.00 98.00 91.00 78.00 57.00 53.00 101.00
2001 54.00 53.00 77.00 83.00 98.00 92.00 101.00 104.00 92.00 81.00 73.00 54.00 104.00
2002 63.00 61.00 60.00 72.00 83.00 102.00 107.00 96.00 93.00 73.00 68.00 66.00 107.00
2003 64.00 58.00 77.00 76.00 86.00 101.00 104.00 100.00 102.00 87.00 65.00 58.00 104.00
2004 56.00 60.00 79.00 83.00 81.00 99.00 104.00 103.00 90.00 85.00 63.00 63.00 104.00
2005 65.00 65.00 73.00 78.00 93.00 93.00 ----- z ----- z ----- z ----- z ----- z ----- z 93.00
2006 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2007 59.00 67.00 71.00 71.00 f 90.00 k ----- z ----- z ----- z ----- z ----- z 59.00 ----- z 90.00
2008 ----- z 52.00 ----- z 79.00 e 92.00 a ----- z ----- z ----- z ----- z ----- z 72.00 56.00 92.00
2009 57.00 56.00 64.00 81.00 91.00 90.00 98.00 a 104.00 93.00 70.00 64.00 52.00 104.00
2010 62.00 58.00 74.00 82.00 85.00 89.00 99.00 97.00 86.00 84.00 69.00 58.00 99.00
2011 58.00 61.00 61.00 70.00 77.00 89.00 e 96.00 99.00 96.00 i 88.00 67.00 55.00 99.00
2012 65.00 62.00 69.00 85.00 87.00 87.00 100.00 102.00 94.00 78.00 73.00 58.00 a 102.00
2013 56.00 c 57.00 66.00 c ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 66.00
Period of Record Statistics
MEAN 57.93 60.08 68.64 78.59 87.66 94.02 101.14 99.58 91.95 80.81 65.74 58.91 102.99
S.D. 5.63 5.30 5.15 5.63 5.49 4.83 3.70 4.53 5.19 5.34 5.03 4.50 3.48
SKEW -0.93 0.01 0.08 0.08 -0.21 0.11 -0.19 0.22 -0.34 -0.18 0.48 -0.47 -0.08
MAX 70.00 74.00 84.00 93.00 101.00 107.00 109.00 114.00 105.00 92.00 80.00 69.00 114.00
MIN 34.00 44.00 55.00 65.00 71.00 81.00 92.00 88.00 78.00 69.00 55.00 46.00 93.00
NO YRS 112 115 114 113 114 114 111 112 110 110 113 112 95