Climatological Report (Daily)
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000
CDUS46 KSEW 170827
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
127 AM PDT WED SEP 17 2014


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 16 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         72    326 PM  91    1967  71      1       71
  MINIMUM         57    321 AM  44    1992  52      5       59
                                      1952
  AVERAGE         65                        61      4       65

PRECIPITATION (IN)
  YESTERDAY        T             0.76 1997   0.05  -0.05     0.01
  MONTH TO DATE    0.12                      0.69  -0.57     2.17
  SINCE OCT 1     37.00                     36.68   0.32    43.41
  SINCE JAN 1     30.01                     21.28   8.73    21.57

DEGREE DAYS
 HEATING
  YESTERDAY        0                         4     -4        0
  MONTH TO DATE   11                        47    -36        6
  SINCE SEP 1     11                        47    -36        6
  SINCE JUL 1     34                       132    -98       21

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   35                        16     19       55
  SINCE SEP 1     35                        16     19       55
  SINCE JAN 1    358                       184    174      385
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     6.3


SKY COVER
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           300 AM
 LOWEST     53           100 PM
 AVERAGE    70

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        85      1991
 MINIMUM TEMPERATURE (F)   52        42      1965


SUNRISE AND SUNSET
SEPTEMBER 17 2014.....SUNRISE   649 AM PDT   SUNSET   717 PM PDT
SEPTEMBER 18 2014.....SUNRISE   651 AM PDT   SUNSET   715 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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