Climatological Report (Daily)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
CDUS46 KSEW 280833
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
133 AM PDT FRI JUL 28 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 27 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         70    538 PM  95    1998  77     -7       84
                                      1958
  MINIMUM         57    702 AM  46    1956  57      0       56
  AVERAGE         64                        67     -3       70

PRECIPITATION (IN)
  YESTERDAY        T             0.30 1983   0.01  -0.01     0.00
  MONTH TO DATE    T                         0.63  -0.63     0.72
  SINCE OCT 1     48.80                     35.04  13.76    47.95
  SINCE JAN 1     28.40                     19.64   8.76    23.56

DEGREE DAYS
 HEATING
  YESTERDAY        1                         1      0        0
  MONTH TO DATE    6                        45    -39       10
  SINCE JUN 1    105                       189    -84      101
  SINCE JUL 1      6                        45    -39       10

 COOLING
  YESTERDAY        0                         3     -3        5
  MONTH TO DATE   69                        61      8       53
  SINCE JUN 1    112                        82     30      107
  SINCE JAN 1    131                        88     43      133
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   W (250)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     6.7


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           200 AM
 LOWEST     57           400 PM
 AVERAGE    75

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        97      2009
                                             1998
                                             1958
 MINIMUM TEMPERATURE (F)   57        47      1953


SUNRISE AND SUNSET
JULY 28 2017..........SUNRISE   543 AM PDT   SUNSET   848 PM PDT
JULY 29 2017..........SUNRISE   544 AM PDT   SUNSET   847 PM PDT


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




$$




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.