689
CDUS46 KSEW 070826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT THU SEP 07 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 6 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 74 326 PM 90 2014 74 0 80
MINIMUM 53 609 AM 44 1947 55 -2 54
AVERAGE 64 65 -1 67
PRECIPITATION (IN)
YESTERDAY 0.00 0.93 2009 0.05 -0.05 0.00
MONTH TO DATE 0.13 0.26 -0.13 0.07
SINCE OCT 1 29.40 37.99 -8.59 45.30
SINCE JAN 1 14.51 22.05 -7.54 25.20
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 2 -1 0
MONTH TO DATE 11 12 -1 0
SINCE SEP 1 11 12 -1 0
SINCE JUL 1 23 67 -44 20
COOLING
YESTERDAY 0 2 -2 2
MONTH TO DATE 12 12 0 12
SINCE SEP 1 12 12 0 12
SINCE JAN 1 364 245 119 356
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 5.8
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 100 AM
LOWEST 38 300 PM
AVERAGE 61
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 94 1981
MINIMUM TEMPERATURE (F) 55 45 1960
1992
SUNRISE AND SUNSET
SEPTEMBER 7 2023.....SUNRISE 636 AM PDT SUNSET 738 PM PDT
SEPTEMBER 8 2023.....SUNRISE 637 AM PDT SUNSET 736 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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