Climatological Report (Daily)
Issued by NWS

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754
CDUS46 KSEW 240838
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
137 AM PDT WED MAY 24 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 23 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         78    226 PM  90    1969  66     12       66
  MINIMUM         53   1159 PM  37    1980  49      4       53
                                      1950
  AVERAGE         66                        57      9       60

PRECIPITATION (IN)
  YESTERDAY        0.00          0.70 1962   0.06  -0.06     0.00
  MONTH TO DATE    2.16                      1.43   0.73     0.84
  SINCE OCT 1     47.16                     32.33  14.83    45.36
  SINCE JAN 1     26.76                     16.93   9.83    20.97

DEGREE DAYS
 HEATING
  YESTERDAY        0                         8     -8        5
  MONTH TO DATE  199                       226    -27      120
  SINCE MAR 1   1203                      1240    -37      852
  SINCE JUL 1   4376                      4494   -118     3696

 COOLING
  YESTERDAY        1                         0      1        0
  MONTH TO DATE    6                         0      6       11
  SINCE MAR 1      6                         0      6       25
  SINCE JAN 1      6                         0      6       25
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION   W (270)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NE (60)
  AVERAGE WIND SPEED     7.3


SKY COVER
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           500 AM
 LOWEST     40           300 PM
 AVERAGE    62

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        89      1992
 MINIMUM TEMPERATURE (F)   49        37      1975
                                             1950


SUNRISE AND SUNSET
MAY 24 2017...........SUNRISE   522 AM PDT   SUNSET   851 PM PDT
MAY 25 2017...........SUNRISE   521 AM PDT   SUNSET   852 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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