Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KSEW 240828
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
127 AM PDT MON JUL 24 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 23 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         76    531 PM  99    1991  77     -1       73
  MINIMUM         62   1159 PM  47    1963  56      6       58
                                      1955
  AVERAGE         69                        67      2       66

PRECIPITATION (IN)
  YESTERDAY        0.00          0.76 2014   0.02  -0.02     0.00
  MONTH TO DATE    0.00                      0.56  -0.56     0.72
  SINCE OCT 1     48.80                     34.97  13.83    47.95
  SINCE JAN 1     28.40                     19.57   8.83    23.56

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    5                        41    -36       10
  SINCE JUN 1    104                       185    -81      101
  SINCE JUL 1      5                        41    -36       10

 COOLING
  YESTERDAY        4                         3      1        1
  MONTH TO DATE   52                        49      3       31
  SINCE JUN 1     95                        70     25       85
  SINCE JAN 1    114                        76     38      111
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION   N (0)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED    10.2


SKY COVER
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           400 AM
 LOWEST     43           600 PM
 AVERAGE    64

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        95      2004
 MINIMUM TEMPERATURE (F)   56        43      1953


SUNRISE AND SUNSET
JULY 24 2017..........SUNRISE   538 AM PDT   SUNSET   853 PM PDT
JULY 25 2017..........SUNRISE   539 AM PDT   SUNSET   852 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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