Climatological Report (Daily)
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719
CDUS46 KSEW 060927
CLISEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PST SAT DEC 06 2025

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 5 2025...

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)
 YESTERDAY
  MAXIMUM         55    313 PM  59    2023  48      7       51
  MINIMUM         45    521 AM  23    1956  38      7       30
                                      2013
  AVERAGE         50                        43      7       41

PRECIPITATION (IN)
  YESTERDAY        0.09          2.39 2023   0.19  -0.10     0.00
  MONTH TO DATE    0.55                      0.95  -0.40     0.00
  SINCE OCT 1      9.96                     11.17  -1.21     7.90
  SINCE JAN 1     26.23                     34.57  -8.34    26.68

SNOWFALL (IN)
  YESTERDAY        0.0           2.6  1956                   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
  YESTERDAY       15                        22     -7       24
  MONTH TO DATE  100                       110    -10      138
  SINCE DEC 1    100                       110    -10      138
  SINCE JUL 1   1014                      1171   -157     1179

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    328                       263     65      315
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED  13   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    32   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    51   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED    15.1


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     79           800 PM
 AVERAGE    90

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        57      1965
 MINIMUM TEMPERATURE (F)   38        19      1956


SUNRISE AND SUNSET
DECEMBER  6 2025......SUNRISE   742 AM PST   SUNSET   419 PM PST
DECEMBER  7 2025......SUNRISE   743 AM PST   SUNSET   418 PM PST


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




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