Climatological Report (Daily)
Issued by NWS Seattle/Tacoma, WA

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CDUS46 KSEW 160837
CLISEW


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1237 AM PST SAT DEC 16 2017


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

...THE SEATTLE WA WFO CLIMATE SUMMARY FOR DECEMBER 15 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1986 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR     LAST
                VALUE   (LST)  VALUE           YEAR
....................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         46        MM  56    2014    38
  MINIMUM         35        MM  23    2008    34
  AVERAGE         41                          36

PRECIPITATION (IN)
  YESTERDAY        0.03          0.52 2001     0.00
  MONTH TO DATE    0.94                        1.50
  SINCE OCT 1     12.98                       19.51
  SINCE JAN 1     40.94                       42.82

SNOWFALL (IN)
  YESTERDAY        0.0                         0.0
  MONTH TO DATE    0.0                         1.4
  SINCE OCT 1      T                           1.4
  SINCE JUL 1      T                           1.4
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       24                          29
  MONTH TO DATE  354                         390
  SINCE DEC 1    354                         390
  SINCE JUL 1   1329                        1201

 COOLING
  YESTERDAY        0                           0
  MONTH TO DATE    0                           0
  SINCE DEC 1      0                           0
  SINCE JAN 1    345                         260
....................................................


WIND (MPH)
  HIGHEST WIND SPEED    MM   HIGHEST WIND DIRECTION    MM
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM
  AVERAGE WIND SPEED    MM



WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.






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




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