Climatological Report (Daily)
Issued by NWS

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540
CDUS46 KSEW 180826
CLISEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT TUE JUN 18 2024

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 17 2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         61    210 PM  91    1969  71    -10       59
  MINIMUM         50    700 AM  43    1954  53     -3       51
  AVERAGE         56                        62     -6       55

PRECIPITATION (IN)
  YESTERDAY        0.04          0.51 1964   0.05  -0.01     0.07
  MONTH TO DATE    1.16                      0.91   0.25     0.62
  SINCE OCT 1     33.25                     35.62  -2.37    28.31
  SINCE JAN 1     16.10                     19.68  -3.58    13.42

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE OCT 1      0.3                                       8.1
  SINCE JUL 1      0.3                                       8.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        9                         4      5       10
  MONTH TO DATE  108                        79     29       73
  SINCE JUN 1    108                        79     29       73
  SINCE JUL 1   4259                      4337    -78     4394

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    1                        17    -16       17
  SINCE JUN 1      1                        17    -16       17
  SINCE JAN 1      8                        27    -19       52
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (210)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     7.7


SKY COVER
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           300 PM
 LOWEST     58           100 PM
 AVERAGE    72

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        94      1982
 MINIMUM TEMPERATURE (F)   53        43      1954


SUNRISE AND SUNSET
JUNE 18 2024..........SUNRISE   512 AM PDT   SUNSET   909 PM PDT
JUNE 19 2024..........SUNRISE   512 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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