507
CDUS46 KSEW 100119
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
619 PM PDT SAT SEP 09 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 9 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 81 455 PM 89 1963 74 7 78
MINIMUM 56 609 AM 40 1952 55 1 55
AVERAGE 69 64 5 67
PRECIPITATION (IN)
TODAY 0.00 0.61 1982 0.04 -0.04 0.00
MONTH TO DATE 0.13 0.39 -0.26 0.07
SINCE OCT 1 29.40 38.12 -8.72 45.30
SINCE JAN 1 14.51 22.18 -7.67 25.20
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 8.1 9.2
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 15 18 -3 2
SINCE SEP 1 15 18 -3 2
SINCE JUL 1 27 73 -46 22
COOLING
TODAY 4 2 2 2
MONTH TO DATE 16 18 -2 17
SINCE SEP 1 16 18 -2 17
SINCE JAN 1 368 251 117 361
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (20)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 6.5
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 600 AM
LOWEST 34 400 PM
AVERAGE 55
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 92 2022
MINIMUM TEMPERATURE (F) 55 39 1952
SUNRISE AND SUNSET
SEPTEMBER 9 2023.....SUNRISE 638 AM PDT SUNSET 734 PM PDT
SEPTEMBER 10 2023.....SUNRISE 640 AM PDT SUNSET 732 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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