Climatological Report (Daily)
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000
CDUS46 KSEW 190831
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1231 AM PST FRI JAN 19 2018


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 18 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         52    119 AM  60    2005  48      4       53
  MINIMUM         39    953 PM   9    1950  37      2       44
  AVERAGE         46                        42      4       49

PRECIPITATION (IN)
  YESTERDAY        0.40          2.98 1986   0.19   0.21     1.21
  MONTH TO DATE    3.96                      3.41   0.55     3.95
  SINCE OCT 1     22.82                     18.81   4.01    24.35
  SINCE JAN 1      3.96                      3.41   0.55     3.95

SNOWFALL (IN)
  YESTERDAY        0.0           6.8  2012                   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       19                        23     -4       16
  MONTH TO DATE  343                       422    -79      550
  SINCE DEC 1   1112                      1177    -65     1380
  SINCE JUL 1   2101                      2360   -259     2231

 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   9   RESULTANT WIND DIRECTION   S (170)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    10.4


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           300 PM
 LOWEST     63           100 AM
 AVERAGE    78

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        62      2005
 MINIMUM TEMPERATURE (F)   37        18      1954


SUNRISE AND SUNSET
JANUARY 19 2018.......SUNRISE   749 AM PST   SUNSET   451 PM PST
JANUARY 20 2018.......SUNRISE   748 AM PST   SUNSET   453 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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