317
CDUS46 KSEW 050827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT TUE SEP 05 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 4 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 66 259 PM 88 2017 75 -9 76
MINIMUM 53 610 AM 42 1952 56 -3 57
AVERAGE 60 65 -5 67
PRECIPITATION (IN)
YESTERDAY 0.07 0.97 1945 0.05 0.02 0.01
MONTH TO DATE 0.13 0.17 -0.04 0.07
SINCE OCT 1 29.40 37.90 -8.50 45.30
SINCE JAN 1 14.51 21.96 -7.45 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 5 2 3 0
MONTH TO DATE 7 8 -1 0
SINCE SEP 1 7 8 -1 0
SINCE JUL 1 19 63 -44 20
COOLING
YESTERDAY 0 2 -2 2
MONTH TO DATE 12 8 4 10
SINCE SEP 1 12 8 4 10
SINCE JAN 1 364 241 123 354
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WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 7.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 800 AM
LOWEST 58 300 PM
AVERAGE 76
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 88 1973
MINIMUM TEMPERATURE (F) 55 42 1947
SUNRISE AND SUNSET
SEPTEMBER 5 2023.....SUNRISE 633 AM PDT SUNSET 742 PM PDT
SEPTEMBER 6 2023.....SUNRISE 635 AM PDT SUNSET 740 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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