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

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CDUS46 KSEW 210847
CLISEW


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
147 AM PDT THU SEP 21 2017


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

...THE SEATTLE WA WFO CLIMATE SUMMARY FOR SEPTEMBER 20 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         63        MM  83    1987    67
  MINIMUM         48        MM  45    2002    48
  AVERAGE         56                          58

PRECIPITATION (IN)
  YESTERDAY        T             0.53 2008     0.00
  MONTH TO DATE    0.94                        1.53
  SINCE OCT 1     49.52                       43.71
  SINCE JAN 1     27.80                       23.31

DEGREE DAYS
 HEATING
  YESTERDAY        9                           7
  MONTH TO DATE   41                          58
  SINCE SEP 1     41                          58
  SINCE JUL 1     44                          71

 COOLING
  YESTERDAY        0                           0
  MONTH TO DATE   61                           0
  SINCE SEP 1     61                           0
  SINCE JAN 1    333                         255
....................................................


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.
  LIGHT RAIN






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




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