Climatological Report (Daily)
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CDUS46 KSEW 200838
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1238 AM PST FRI JAN 20 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 19 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         50        MM  62    2005  48      2       47
  MINIMUM         43        MM  18    1954  37      6       42
  AVERAGE         47                        42      5       45

PRECIPITATION (IN)
  YESTERDAY        0.09          2.26 1967   0.18  -0.09     0.49
  MONTH TO DATE    4.04                      3.59   0.45     3.03
  SINCE OCT 1     24.44                     18.99   5.45    27.42
  SINCE JAN 1      4.04                      3.59   0.45     3.03

SNOWFALL (IN)
  YESTERDAY        0.0           3.5  1996                   0.0
  MONTH TO DATE    3.0                                        T
  SINCE OCT 1      4.0                                        T
  SINCE JUL 1      4.0                                        T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       18                        23     -5       20
  MONTH TO DATE  568                       445    123      438
  SINCE DEC 1   1398                      1200    198     1115
  SINCE JUL 1   2249                      2383   -134     2126

 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  10   RESULTANT WIND DIRECTION   S (170)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     9.9


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92          1200 AM
 LOWEST     71          1000 AM
 AVERAGE    82

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        64      1981
 MINIMUM TEMPERATURE (F)   37        16      1962
                                             1954


SUNRISE AND SUNSET
JANUARY 20 2017.......SUNRISE   748 AM PST   SUNSET   453 PM PST
JANUARY 21 2017.......SUNRISE   747 AM PST   SUNSET   455 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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