568
CDUS46 KSEW 260828
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
128 AM PDT TUE SEP 26 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 25 2023...
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)
YESTERDAY
MAXIMUM 63 355 PM 85 1991 69 -6 80
MINIMUM 55 831 PM 36 1972 52 3 53
AVERAGE 59 60 -1 67
PRECIPITATION (IN)
YESTERDAY 0.82R 0.75 2020 0.06 0.76 0.00
MONTH TO DATE 2.28 1.25 1.03 0.22
SINCE OCT 1 31.55 38.98 -7.43 45.45
SINCE JAN 1 16.66 23.04 -6.38 25.35
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 6 5 1 0
MONTH TO DATE 63 74 -11 25
SINCE SEP 1 63 74 -11 25
SINCE JUL 1 75 129 -54 45
COOLING
YESTERDAY 0 0 0 2
MONTH TO DATE 26 30 -4 33
SINCE SEP 1 26 30 -4 33
SINCE JAN 1 378 263 115 377
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WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 7.6
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 500 PM
LOWEST 69 400 PM
AVERAGE 81
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 82 2022
MINIMUM TEMPERATURE (F) 52 39 1972
SUNRISE AND SUNSET
SEPTEMBER 26 2023.....SUNRISE 701 AM PDT SUNSET 659 PM PDT
SEPTEMBER 27 2023.....SUNRISE 703 AM PDT SUNSET 657 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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