807
CDUS46 KSEW 250835
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
135 AM PDT WED SEP 25 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 24 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 78 343 PM 89 1974 69 9 64
MINIMUM 58 405 AM 38 1948 52 6 52
AVERAGE 68 60 8 58
PRECIPITATION (IN)
YESTERDAY 0.00 0.99 1950 0.06 -0.06 0.61
MONTH TO DATE 0.41 1.19 -0.78 1.46
SINCE OCT 1 35.51 38.92 -3.41 30.73
SINCE JAN 1 18.36 22.98 -4.62 15.84
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 7
MONTH TO DATE 65 69 -4 57
SINCE SEP 1 65 69 -4 57
SINCE JUL 1 103 124 -21 69
COOLING
YESTERDAY 3 0 3 0
MONTH TO DATE 42 30 12 26
SINCE SEP 1 42 30 12 26
SINCE JAN 1 315 263 52 378
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION N (340)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 4.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 400 AM
LOWEST 54 300 PM
AVERAGE 76
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 85 1991
MINIMUM TEMPERATURE (F) 52 36 1972
SUNRISE AND SUNSET
SEPTEMBER 25 2024.....SUNRISE 701 AM PDT SUNSET 659 PM PDT
SEPTEMBER 26 2024.....SUNRISE 702 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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