050
CDUS46 KSEW 130827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT THU AUG 13 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 12 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 79 314 PM 96 1977 78 1 92
MINIMUM 58 513 AM 49 1949 58 0 64
1950
1953
AVERAGE 69 68 1 78
PRECIPITATION (IN)
YESTERDAY 0.00 0.56 1965 0.03 -0.03 0.00
MONTH TO DATE T 0.29 -0.29 0.16
SINCE OCT 1 36.35 37.05 -0.70 27.93
SINCE JAN 1 19.57 21.11 -1.54 14.53
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 3.0 2.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 1 5 -4 2
SINCE JUN 1 116 154 -38 117
SINCE JUL 1 21 36 -15 23
COOLING
YESTERDAY 4 4 0 13
MONTH TO DATE 43 48 -5 48
SINCE JUN 1 201 173 28 209
SINCE JAN 1 211 183 28 212
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 4.0
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 500 AM
LOWEST 46 100 PM
AVERAGE 70
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 92 2002
MINIMUM TEMPERATURE (F) 58 44 1955
SUNRISE AND SUNSET
AUGUST 13 2026........SUNRISE 603 AM PDT SUNSET 824 PM PDT
AUGUST 14 2026........SUNRISE 604 AM PDT SUNSET 822 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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