Climatological Report (Daily)
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974
CDUS46 KSEW 170830
CLISEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
130 AM PDT FRI MAY 17 2024

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 16 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         64   1244 PM  84    1985  67     -3       78
                                      2008
  MINIMUM         49   1159 PM  40    2003  49      0       55
  AVERAGE         57                        58     -1       67

PRECIPITATION (IN)
  YESTERDAY        0.02          0.64 1988   0.05  -0.03      T
  MONTH TO DATE    0.30                      1.03  -0.73     0.91
  SINCE OCT 1     30.85                     33.86  -3.01    27.67
  SINCE JAN 1     13.70                     17.92  -4.22    12.78

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        8                         8      0        0
  MONTH TO DATE  135                       146    -11       92
  SINCE MAR 1   1104                      1115    -11     1170
  SINCE JUL 1   3994                      4162   -168     4257

 COOLING
  YESTERDAY        0                         0      0        2
  MONTH TO DATE    7                         0      7       27
  SINCE MAR 1      7                         1      6       27
  SINCE JAN 1      7                         1      6       27
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION  SW (210)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    42   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED    12.3


SKY COVER
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           500 AM
 LOWEST     60           200 PM
 AVERAGE    77

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   67        90      2008
 MINIMUM TEMPERATURE (F)   49        39      1966
                                             2011


SUNRISE AND SUNSET
MAY 17 2024...........SUNRISE   529 AM PDT   SUNSET   843 PM PDT
MAY 18 2024...........SUNRISE   528 AM PDT   SUNSET   844 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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