SEATTLE WB AIRPORT, WASHINGTON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(457483)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 196509
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
1948 ----- z ----- z ----- z ----- z ----- z 89.00 90.00 ----- z 81.00 74.00 55.00 49.00 90.00
1949 51.00 67.00 64.00 75.00 82.00 86.00 a 87.00 95.00 86.00 68.00 69.00 58.00 95.00
1950 52.00 60.00 58.00 76.00 83.00 87.00 85.00 89.00 84.00 73.00 68.00 61.00 89.00
1951 57.00 59.00 64.00 81.00 85.00 93.00 96.00 86.00 86.00 82.00 58.00 50.00 96.00
1952 60.00 63.00 60.00 75.00 81.00 77.00 90.00 94.00 88.00 76.00 66.00 62.00 94.00
1953 57.00 55.00 66.00 67.00 90.00 76.00 90.00 86.00 87.00 78.00 64.00 54.00 90.00
1954 57.00 65.00 61.00 72.00 78.00 77.00 85.00 82.00 75.00 78.00 64.00 58.00 85.00
1955 53.00 53.00 61.00 73.00 75.00 99.00 86.00 85.00 85.00 70.00 62.00 57.00 99.00
1956 58.00 49.00 64.00 73.00 87.00 81.00 94.00 86.00 87.00 72.00 61.00 56.00 94.00
1957 51.00 57.00 63.00 77.00 83.00 79.00 84.00 84.00 85.00 70.00 60.00 60.00 85.00
1958 58.00 64.00 61.00 78.00 87.00 95.00 98.00 88.00 84.00 75.00 63.00 60.00 98.00
1959 55.00 58.00 63.00 76.00 85.00 89.00 92.00 83.00 76.00 68.00 61.00 57.00 92.00
1960 64.00 56.00 67.00 72.00 81.00 82.00 94.00 100.00 82.00 71.00 65.00 60.00 100.00
1961 60.00 58.00 63.00 68.00 87.00 87.00 97.00 92.00 85.00 82.00 62.00 55.00 97.00
1962 57.00 65.00 67.00 80.00 69.00 85.00 90.00 87.00 85.00 74.00 64.00 59.00 90.00
1963 55.00 70.00 65.00 67.00 93.00 88.00 80.00 85.00 89.00 77.00 61.00 60.00 93.00
1964 55.00 57.00 71.00 66.00 89.00 82.00 87.00 88.00 77.00 76.00 58.00 56.00 89.00
1965 54.00 60.00 69.00 80.00 78.00 87.00 96.00 90.00 79.00 ----- z ----- z ----- z 96.00
Period of Record Statistics
MEAN 56.12 59.76 63.94 73.88 83.12 85.50 90.06 88.24 83.39 74.35 62.41 57.18 92.88
S.D. 3.44 5.37 3.34 4.77 5.91 6.36 5.09 4.72 4.17 4.29 3.61 3.63 4.62
SKEW 0.38 0.03 0.34 -0.25 -0.61 0.31 -0.11 0.99 -0.78 0.24 -0.09 -0.94 -0.21
MAX 64.00 70.00 71.00 81.00 93.00 99.00 98.00 100.00 89.00 82.00 69.00 62.00 100.00
MIN 51.00 49.00 58.00 66.00 69.00 76.00 80.00 82.00 75.00 68.00 55.00 49.00 85.00
NO YRS 17 17 17 17 17 18 18 17 18 17 17 17 16