DAYTON 1 WSW, WASHINGTON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(452030)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200506
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
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 79.00 m 96.00 z 90.00 x 103.00 v ----- z ----- z ----- z ----- z ----- z 103.00
Period of Record Statistics
MEAN 57.92 60.71 68.81 78.95 88.23 94.51 101.80 100.31 93.30 81.34 65.86 59.14 103.39
S.D. 5.94 4.99 4.83 5.69 5.87 4.81 3.57 4.62 4.85 5.36 4.74 4.49 3.46
SKEW -1.12 0.20 0.17 0.20 -0.43 0.00 -0.43 0.15 -0.40 -0.31 0.54 -0.67 -0.04
MAX 69.00 74.00 79.00 93.00 101.00 107.00 109.00 114.00 105.00 92.00 80.00 69.00 114.00
MIN 34.00 51.00 59.00 65.00 71.00 81.00 92.00 88.00 78.00 69.00 57.00 46.00 93.00
NO YRS 73 75 75 75 75 74 74 74 74 73 74 74 70