Climatological Report (Daily)
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CDUS46 KSEW 010121
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
521 PM PST SAT JAN 31 2015


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 31 2015...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         45    256 PM  61    1960  49     -4       46
  MINIMUM         38    711 AM   0    1950  37      1       42
  AVERAGE         42                        43     -1       44

PRECIPITATION (IN)
  TODAY            0.00          1.93 1987   0.16  -0.16     0.09
  MONTH TO DATE    3.66                      5.57  -1.91     3.70
  SINCE OCT 1     20.04                     20.97  -0.93    10.69
  SINCE JAN 1      3.66                      5.57  -1.91     3.70

SNOWFALL (IN)
  TODAY            0.0           2.0  1969                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE OCT 1      0.8                                       1.1
  SINCE JUL 1      0.8                                       1.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           23                        22      1       21
  MONTH TO DATE  612                       710    -98      632
  SINCE DEC 1   1215                      1466   -251     1410
  SINCE JUL 1   2055                      2649   -594     2432

 COOLING
  TODAY            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   3   RESULTANT WIND DIRECTION   N (20)
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    10   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     3.7


SKY COVER
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     83           200 PM
 AVERAGE    92

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   49        63      1962
 MINIMUM TEMPERATURE (F)   37         1      1950


SUNRISE AND SUNSET
JANUARY 31 2015.......SUNRISE   737 AM PST   SUNSET   509 PM PST
FEBRUARY  1 2015......SUNRISE   735 AM PST   SUNSET   511 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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