513
CDUS46 KSEW 230826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT SAT SEP 23 2023
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...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 22 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 76 407 PM 92 1990 70 6 70
MINIMUM 51 635 AM 37 1955 53 -2 54
AVERAGE 64 61 3 62
PRECIPITATION (IN)
YESTERDAY 0.00 1.65 1978 0.05 -0.05 0.00
MONTH TO DATE 0.70 1.07 -0.37 0.22
SINCE OCT 1 29.97 38.80 -8.83 45.45
SINCE JAN 1 15.08 22.86 -7.78 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 1 4 -3 3
MONTH TO DATE 44 59 -15 20
SINCE SEP 1 44 59 -15 20
SINCE JUL 1 56 114 -58 40
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 26 30 -4 31
SINCE SEP 1 26 30 -4 31
SINCE JAN 1 378 263 115 375
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (170)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 4.6
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 300 AM
LOWEST 31 400 PM
AVERAGE 56
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 84 1947
MINIMUM TEMPERATURE (F) 52 40 1948
SUNRISE AND SUNSET
SEPTEMBER 23 2023.....SUNRISE 657 AM PDT SUNSET 705 PM PDT
SEPTEMBER 24 2023.....SUNRISE 659 AM PDT SUNSET 703 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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