Climatological Report (Daily)
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000
CDUS46 KSEW 250831
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
131 AM PDT TUE JUL 25 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 24 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         82    445 PM  95    2004  77      5       81
  MINIMUM         56    456 AM  43    1953  56      0       58
  AVERAGE         69                        67      2       70

PRECIPITATION (IN)
  YESTERDAY        0.00          0.28 1991   0.02  -0.02     0.00
  MONTH TO DATE    0.00                      0.58  -0.58     0.72
  SINCE OCT 1     48.80                     34.99  13.81    47.95
  SINCE JAN 1     28.40                     19.59   8.81    23.56

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    5                        42    -37       10
  SINCE JUN 1    104                       186    -82      101
  SINCE JUL 1      5                        42    -37       10

 COOLING
  YESTERDAY        4                         3      1        5
  MONTH TO DATE   56                        52      4       36
  SINCE JUN 1     99                        73     26       90
  SINCE JAN 1    118                        79     39      116
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION   N (350)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     8.6


SKY COVER
  AVERAGE SKY COVER 0.1


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           500 AM
 LOWEST     35           600 PM
 AVERAGE    61

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        94      1988
 MINIMUM TEMPERATURE (F)   56        47      1954


SUNRISE AND SUNSET
JULY 25 2017..........SUNRISE   539 AM PDT   SUNSET   852 PM PDT
JULY 26 2017..........SUNRISE   540 AM PDT   SUNSET   850 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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