Climatological Report (Daily)
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266
CDUS46 KSEW 160117
CLISEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PDT WED OCT 15 2025

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 15 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         61    147 PM  77    1991  61      0       59
                                      2022
  MINIMUM         38    616 AM  35    1946  47     -9       51
                                      1952
  AVERAGE         50                        54     -4       55

PRECIPITATION (IN)
  TODAY            0.00          0.93 1951   0.12  -0.12     0.03
  MONTH TO DATE    0.60                      1.50  -0.90     0.83
  SINCE OCT 1      0.60                      1.50  -0.90     0.83
  SINCE JAN 1     16.87                     24.90  -8.03    19.61

SNOWFALL (IN)
  TODAY            0.0          MM      MM                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE OCT 1      0.0                                       0.0
  SINCE JUL 1      0.0                                       0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           15                        11      4       10
  MONTH TO DATE  135                       134      1      119
  SINCE SEP 1    186                       236    -50      225
  SINCE JUL 1    210                       291    -81      263

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE SEP 1     34                        30      4       42
  SINCE JAN 1    328                       263     65      315
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   N (350)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     N (360)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     N (360)
  AVERAGE WIND SPEED     5.3


SKY COVER
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           600 AM
 LOWEST     37           400 PM
 AVERAGE    63

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   60        88      2022
 MINIMUM TEMPERATURE (F)   47        32      1946


SUNRISE AND SUNSET
OCTOBER 15 2025.......SUNRISE   728 AM PDT   SUNSET   620 PM PDT
OCTOBER 16 2025.......SUNRISE   730 AM PDT   SUNSET   619 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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