410
CDUS46 KSEW 240833
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
133 AM PDT TUE SEP 24 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 23 2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 73 414 PM 84 1947 69 4 64
MINIMUM 60 503 AM 40 1948 52 8 54
AVERAGE 67 61 6 59
PRECIPITATION (IN)
YESTERDAY T 1.08 2020 0.06 -0.06 0.15
MONTH TO DATE 0.41 1.13 -0.72 0.85
SINCE OCT 1 35.51 38.86 -3.35 30.12
SINCE JAN 1 18.36 22.92 -4.56 15.23
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.3 8.1
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 5 -5 6
MONTH TO DATE 65 64 1 50
SINCE SEP 1 65 64 1 50
SINCE JUL 1 103 119 -16 62
COOLING
YESTERDAY 2 0 2 0
MONTH TO DATE 39 30 9 26
SINCE SEP 1 39 30 9 26
SINCE JAN 1 312 263 49 378
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 5.6
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 700 AM
LOWEST 64 300 PM
AVERAGE 79
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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 2024.....SUNRISE 700 AM PDT SUNSET 701 PM PDT
SEPTEMBER 25 2024.....SUNRISE 701 AM PDT SUNSET 659 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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