560
CDUS46 KSEW 180826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT SUN OCT 18 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 17 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 62 249 PM 74 1989 60 2 60
MINIMUM 49 1147 PM 34 1949 47 2 49
AVERAGE 56 53 3 55
PRECIPITATION (IN)
YESTERDAY 0.02 1.24 2009 0.13 -0.11 T
MONTH TO DATE 0.08 1.75 -1.67 0.60
SINCE OCT 1 0.08 1.75 -1.67 0.60
SINCE JAN 1 21.67 25.15 -3.48 16.87
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 9 12 -3 10
MONTH TO DATE 125 157 -32 160
SINCE SEP 1 258 259 -1 211
SINCE JUL 1 283 314 -31 235
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 2 30 -28 34
SINCE JAN 1 267 263 4 328
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 11.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 AM
LOWEST 56 200 PM
AVERAGE 75
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 71 2023
MINIMUM TEMPERATURE (F) 47 32 1949
SUNRISE AND SUNSET
OCTOBER 18 2026.......SUNRISE 732 AM PDT SUNSET 615 PM PDT
OCTOBER 19 2026.......SUNRISE 734 AM PDT SUNSET 614 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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