Climatological Report (Daily)
Issued by NWS

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332
CDUS46 KSEW 120827
CLISEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT SUN MAY 12 2024

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 11 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         83    428 PM  87    1971  66     17       75
  MINIMUM         55    454 AM  35    1953  48      7       50
  AVERAGE         69                        57     12       63

PRECIPITATION (IN)
  YESTERDAY        0.00          0.47 1954   0.06  -0.06     0.00
                                      2017
  MONTH TO DATE    0.28                      0.74  -0.46     0.79
  SINCE OCT 1     30.83                     33.57  -2.74    27.55
  SINCE JAN 1     13.68                     17.63  -3.95    12.66

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        0                         9     -9        2
  MONTH TO DATE  111                       106      5       92
  SINCE MAR 1   1080                      1075      5     1170
  SINCE JUL 1   3970                      4122   -152     4257

 COOLING
  YESTERDAY        4                         0      4        0
  MONTH TO DATE    7                         0      7        0
  SINCE MAR 1      7                         1      6        0
  SINCE JAN 1      7                         1      6        0
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   N (340)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     N (20)
  AVERAGE WIND SPEED     4.8


SKY COVER
  AVERAGE SKY COVER 0.1


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    77           500 AM
 LOWEST     23           400 PM
 AVERAGE    50

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        82      2023
 MINIMUM TEMPERATURE (F)   48        38      1964
                                             1985
                                             2011


SUNRISE AND SUNSET
MAY 12 2024...........SUNRISE   535 AM PDT   SUNSET   837 PM PDT
MAY 13 2024...........SUNRISE   534 AM PDT   SUNSET   838 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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