280
CDUS46 KSEW 120826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT SAT AUG 12 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 11 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 79 448 PM 96 2014 78 1 81
MINIMUM 59 540 AM 46 1954 58 1 58
AVERAGE 69 68 1 70
PRECIPITATION (IN)
YESTERDAY 0.00 0.32 2009 0.03 -0.03 0.00
MONTH TO DATE 0.04 0.26 -0.22 0.03
SINCE OCT 1 29.04 37.02 -7.98 45.21
SINCE JAN 1 14.15 21.08 -6.93 25.11
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 MM
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 4 -4 2
SINCE JUN 1 114 153 -39 159
SINCE JUL 1 2 35 -33 19
COOLING
YESTERDAY 4 4 0 5
MONTH TO DATE 53 44 9 46
SINCE JUN 1 201 169 32 223
SINCE JAN 1 236 179 57 223
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (360)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 7.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 400 AM
LOWEST 37 300 PM
AVERAGE 58
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 1977
MINIMUM TEMPERATURE (F) 58 49 1949
1950
1953
SUNRISE AND SUNSET
AUGUST 12 2023........SUNRISE 601 AM PDT SUNSET 826 PM PDT
AUGUST 13 2023........SUNRISE 603 AM PDT SUNSET 825 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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