680
CDUS46 KSEW 220828
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
128 AM PDT TUE AUG 22 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 21 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 75 559 PM 91 2018 77 -2 81
MINIMUM 53 544 AM 44 1947 57 -4 62
AVERAGE 64 67 -3 72
PRECIPITATION (IN)
YESTERDAY 0.00 0.70 1989 0.03 -0.03 0.00
MONTH TO DATE 0.04 0.58 -0.54 0.05
SINCE OCT 1 29.04 37.34 -8.30 45.23
SINCE JAN 1 14.15 21.40 -7.25 25.13
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 1 0 0
MONTH TO DATE 1 14 -13 2
SINCE JUN 1 115 163 -48 159
SINCE JUL 1 3 45 -42 19
COOLING
YESTERDAY 0 3 -3 7
MONTH TO DATE 140 76 64 112
SINCE JUN 1 288 201 87 289
SINCE JAN 1 323 211 112 289
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 4.8
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 500 AM
LOWEST 37 400 PM
AVERAGE 62
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 89 2018
MINIMUM TEMPERATURE (F) 57 45 1960
SUNRISE AND SUNSET
AUGUST 22 2023........SUNRISE 615 AM PDT SUNSET 809 PM PDT
AUGUST 23 2023........SUNRISE 616 AM PDT SUNSET 807 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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