383
CDUS46 KSEW 180120
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
620 PM PDT TUE OCT 17 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 17 2023...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 60 1154 AM 74 1989 60 0 67
MINIMUM 49 636 AM 34 1949 47 2 52
AVERAGE 55 53 2 60
PRECIPITATION (IN)
TODAY 0.04 1.24 2009 0.13 -0.09 0.00
MONTH TO DATE 2.10 1.75 0.35 0.01
SINCE OCT 1 2.10 1.75 0.35 0.01
SINCE JAN 1 19.92 25.15 -5.23 25.39
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 10 12 -2 5
MONTH TO DATE 105 157 -52 45
SINCE SEP 1 213 259 -46 80
SINCE JUL 1 225 314 -89 100
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 13
SINCE SEP 1 26 30 -4 50
SINCE JAN 1 378 263 115 394
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (170)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 300 AM
LOWEST 64 100 PM
AVERAGE 77
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 70 1974
MINIMUM TEMPERATURE (F) 47 32 1949
SUNRISE AND SUNSET
OCTOBER 17 2023.......SUNRISE 731 AM PDT SUNSET 618 PM PDT
OCTOBER 18 2023.......SUNRISE 732 AM PDT SUNSET 616 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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