Climatological Report (Daily)
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793
CDUS46 KSEW 290826
CLISEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT SUN JUN 29 2025

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 28 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         75    436 PM 108    2021  74      1       71
  MINIMUM         55    228 AM  45    1949  55      0       54
                                      1954
  AVERAGE         65                        64      1       63

PRECIPITATION (IN)
  YESTERDAY        0.00          1.15 1946   0.03  -0.03     0.00
  MONTH TO DATE    0.42                      1.38  -0.96     1.19
  SINCE OCT 1     27.76                     36.09  -8.33    33.49
  SINCE JAN 1     14.36                     20.15  -5.79    16.34

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE OCT 1      2.3                                       0.3
  SINCE JUL 1      2.3                                       0.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         2     -2        2
  MONTH TO DATE   94                       113    -19      132
  SINCE JUN 1     94                       113    -19      132
  SINCE JUL 1   4421                      4371     50     4304

 COOLING
  YESTERDAY        0                         2     -2        0
  MONTH TO DATE   30                        32     -2       16
  SINCE JUN 1     30                        32     -2       16
  SINCE JAN 1     33                        42     -9       23
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  NW (320)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     N (10)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     N (20)
  AVERAGE WIND SPEED     6.1


SKY COVER
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           300 AM
 LOWEST     40           500 PM
 AVERAGE    64

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        93      1987
 MINIMUM TEMPERATURE (F)   55        45      1949


SUNRISE AND SUNSET
JUNE 29 2025..........SUNRISE   515 AM PDT   SUNSET   910 PM PDT
JUNE 30 2025..........SUNRISE   516 AM PDT   SUNSET   910 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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