249
CDUS46 KSEW 210117
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PDT TUE OCT 20 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 20 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 62 329 PM 69 1987 59 3 58
MINIMUM 46 310 AM 29 1949 46 0 48
AVERAGE 54 52 2 53
PRECIPITATION (IN)
TODAY 0.00 5.02 2003 0.14 -0.14 0.03
MONTH TO DATE 0.08 2.15 -2.07 1.06
SINCE OCT 1 0.08 2.15 -2.07 1.06
SINCE JAN 1 21.67 25.55 -3.88 17.33
SNOWFALL (IN)
TODAY 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
TODAY 11 13 -2 12
MONTH TO DATE 160 194 -34 197
SINCE SEP 1 293 296 -3 248
SINCE JUL 1 318 351 -33 272
COOLING
TODAY 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 10 RESULTANT WIND DIRECTION N (20)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 10.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 53 300 PM
AVERAGE 73
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 72 1965
MINIMUM TEMPERATURE (F) 46 32 1949
SUNRISE AND SUNSET
OCTOBER 20 2026.......SUNRISE 735 AM PDT SUNSET 612 PM PDT
OCTOBER 21 2026.......SUNRISE 737 AM PDT SUNSET 610 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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