953
CDUS46 KSEW 090830
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
130 AM PDT MON SEP 09 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 8 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 75 340 PM 85 1993 74 1 75
2011
MINIMUM 58 839 AM 43 1950 55 3 52
AVERAGE 67 64 3 64
PRECIPITATION (IN)
YESTERDAY 0.00 0.60 1979 0.05 -0.05 0.00
1994
MONTH TO DATE T 0.35 -0.35 0.13
SINCE OCT 1 35.10 38.08 -2.98 29.40
SINCE JAN 1 17.95 22.14 -4.19 14.51
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 2 -2 1
MONTH TO DATE 0 16 -16 15
SINCE SEP 1 0 16 -16 15
SINCE JUL 1 36 71 -35 27
COOLING
YESTERDAY 2 2 0 0
MONTH TO DATE 37 16 21 12
SINCE SEP 1 37 16 21 12
SINCE JAN 1 310 249 61 364
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 7.2
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 800 AM
LOWEST 60 400 PM
AVERAGE 79
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 89 1963
MINIMUM TEMPERATURE (F) 55 40 1952
SUNRISE AND SUNSET
SEPTEMBER 9 2024.....SUNRISE 639 AM PDT SUNSET 732 PM PDT
SEPTEMBER 10 2024.....SUNRISE 641 AM PDT SUNSET 730 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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