Climatological Report (Daily)
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000
CDUS46 KSEW 230829
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
129 AM PDT SUN JUL 23 2017


...................................

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 22 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         85    448 PM  96    2006  77      8       73
  MINIMUM         63    100 AM  49    1973  56      7       59
                                      1954
  AVERAGE         74                        67      7       66

PRECIPITATION (IN)
  YESTERDAY        0.00          0.33 1952   0.02  -0.02     0.33
                                      1952
                                      2016
  MONTH TO DATE    0.00                      0.54  -0.54     0.72
  SINCE OCT 1     48.80                     34.95  13.85    47.95
  SINCE JAN 1     28.40                     19.55   8.85    23.56

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    5                        40    -35       10
  SINCE JUN 1    104                       184    -80      101
  SINCE JUL 1      5                        40    -35       10

 COOLING
  YESTERDAY        9                         3      6        1
  MONTH TO DATE   48                        46      2       30
  SINCE JUN 1     91                        67     24       84
  SINCE JAN 1    110                        73     37      110
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION   W (270)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED     7.7


SKY COVER
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    73          1000 PM
 LOWEST     44           400 PM
 AVERAGE    59

..........................................................


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        99      1991
 MINIMUM TEMPERATURE (F)   56        47      1963
                                             1955


SUNRISE AND SUNSET
JULY 23 2017..........SUNRISE   537 AM PDT   SUNSET   854 PM PDT
JULY 24 2017..........SUNRISE   538 AM PDT   SUNSET   853 PM PDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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