Climatological Report (Daily)
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000
CDUS46 KSEW 160830
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1230 AM PST TUE JAN 16 2018


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 15 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         64R   244 PM  58    1974  47     17       43
  MINIMUM         41    836 AM  15    1950  37      4       27
  AVERAGE         53                        42     11       35

PRECIPITATION (IN)
  YESTERDAY        0.06          1.68 1996   0.19  -0.13     0.00
  MONTH TO DATE    2.94                      2.83   0.11     1.00
  SINCE OCT 1     21.80                     18.23   3.57    21.40
  SINCE JAN 1      2.94                      2.83   0.11     1.00

SNOWFALL (IN)
  YESTERDAY        0.0           3.6  1969                   0.0
  MONTH TO DATE    0.0                                       3.0
  SINCE OCT 1      3.0                                       4.0
  SINCE JUL 1      3.0                                       4.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       12                        23    -11       30
  MONTH TO DATE  295                       353    -58      486
  SINCE DEC 1   1064                      1108    -44     1316
  SINCE JUL 1   2053                      2291   -238     2167

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION  SE (120)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    SE (120)
  AVERAGE WIND SPEED     8.8


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           700 AM
 LOWEST     39           300 PM
 AVERAGE    70

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   47        55      2011
 MINIMUM TEMPERATURE (F)   37        13      1950


SUNRISE AND SUNSET
JANUARY 16 2018.......SUNRISE   751 AM PST   SUNSET   447 PM PST
JANUARY 17 2018.......SUNRISE   751 AM PST   SUNSET   449 PM PST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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