826
CDUS46 KSEW 240826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT SUN SEP 24 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 23 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 64 1123 AM 84 1947 69 -5 69
MINIMUM 54 1035 PM 40 1948 52 2 55
AVERAGE 59 61 -2 62
PRECIPITATION (IN)
YESTERDAY 0.15 1.08 2020 0.06 0.09 0.00
MONTH TO DATE 0.85 1.13 -0.28 0.22
SINCE OCT 1 30.12 38.86 -8.74 45.45
SINCE JAN 1 15.23 22.92 -7.69 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 MM
DEGREE DAYS
HEATING
YESTERDAY 6 5 1 3
MONTH TO DATE 50 64 -14 23
SINCE SEP 1 50 64 -14 23
SINCE JUL 1 62 119 -57 43
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 7 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 7.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1000 PM
LOWEST 53 1200 AM
AVERAGE 73
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 89 1974
MINIMUM TEMPERATURE (F) 52 38 1948
SUNRISE AND SUNSET
SEPTEMBER 24 2023.....SUNRISE 659 AM PDT SUNSET 703 PM PDT
SEPTEMBER 25 2023.....SUNRISE 700 AM PDT SUNSET 701 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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