Climatological Report (Daily)
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000
CDUS46 KSEW 210834
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
134 AM PDT THU AUG 21 2014


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 20 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         71    434 PM  87    1966  76     -5       78
  MINIMUM         57   1159 PM  47    1952  56      1       61
  AVERAGE         64                        66     -2       70

PRECIPITATION (IN)
  YESTERDAY        0.00          0.70 2008   0.03  -0.03     0.00
  MONTH TO DATE    1.43                      0.49   0.94     0.27
  SINCE OCT 1     36.50                     35.60   0.90    40.16
  SINCE JAN 1     29.51                     20.20   9.31    18.32

DEGREE DAYS
 HEATING
  YESTERDAY        1                         1      0        0
  MONTH TO DATE    1                        20    -19        6
  SINCE JUN 1    109                       213   -104       64
  SINCE JUL 1     15                        69    -54       15

 COOLING
  YESTERDAY        0                         2     -2        5
  MONTH TO DATE  112                        54     58      100
  SINCE JUN 1    275                       146    129      262
  SINCE JAN 1    290                       152    138      275
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    SW (230)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     8.1


SKY COVER
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80           400 AM
 LOWEST     53           300 PM
 AVERAGE    67

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        88      1966
 MINIMUM TEMPERATURE (F)   56        46      1973


SUNRISE AND SUNSET
AUGUST 21 2014........SUNRISE   613 AM PDT   SUNSET   810 PM PDT
AUGUST 22 2014........SUNRISE   615 AM PDT   SUNSET   808 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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