CDUS46 KSEW 170827
CLISEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT FRI APR 17 2026

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 16 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         56    442 PM  81    1947  59     -3       61
                                      1999
  MINIMUM         36    558 AM  34    1960  43     -7       45
                                      1972
                                      1976
  AVERAGE         46                        51     -5       53

PRECIPITATION (IN)
  YESTERDAY        0.00          0.95 1992   0.11  -0.11     0.00
  MONTH TO DATE    2.22                      1.86   0.36     1.95
  SINCE OCT 1     32.90                     31.51   1.39    25.91
  SINCE JAN 1     16.12                     15.57   0.55    12.51

SNOWFALL (IN)
  YESTERDAY        0.0           1.1  1972                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE OCT 1      3.0                                       2.3
  SINCE JUL 1      3.0                                       2.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       19                        14      5       12
  MONTH TO DATE  229                       240    -11      220
  SINCE MAR 1    814                       797     17      766
  SINCE JUL 1   3564                      3844   -280     3923

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE MAR 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     8.5


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           100 AM
 LOWEST     35           400 PM
 AVERAGE    66

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   59        80      2016
                                             2021
 MINIMUM TEMPERATURE (F)   43        33      1964


SUNRISE AND SUNSET
APRIL 17 2026.........SUNRISE   617 AM PDT   SUNSET   802 PM PDT
APRIL 18 2026.........SUNRISE   615 AM PDT   SUNSET   803 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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