114
CDUS46 KSEW 280116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT SUN SEP 27 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 27 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 65 325 PM 89 1967 68 -3 75
MINIMUM 48 618 AM 35 1972 51 -3 55
AVERAGE 57 60 -3 65
PRECIPITATION (IN)
TODAY 0.00 1.04 1981 0.07 -0.07 0.00
MONTH TO DATE 1.45 1.39 0.06 0.49
SINCE OCT 1 38.36 39.12 -0.76 29.40
SINCE JAN 1 21.58 23.18 -1.60 16.00
SNOWFALL (IN)
TODAY 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
TODAY 8 6 2 0
MONTH TO DATE 108 85 23 38
SINCE SEP 1 108 85 23 38
SINCE JUL 1 133 140 -7 62
COOLING
TODAY 0 0 0 0
MONTH TO DATE 2 30 -28 34
SINCE SEP 1 2 30 -28 34
SINCE JAN 1 267 263 4 328
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 12.2
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 400 AM
LOWEST 52 300 PM
AVERAGE 71
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 86 2017
MINIMUM TEMPERATURE (F) 51 38 1946
1950
SUNRISE AND SUNSET
SEPTEMBER 27 2026.....SUNRISE 703 AM PDT SUNSET 656 PM PDT
SEPTEMBER 28 2026.....SUNRISE 704 AM PDT SUNSET 654 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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