525
CDUS46 KSEW 100116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT SAT MAY 09 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 9 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 69 355 PM 86 2020 65 4 70
MINIMUM 48 436 AM 38 1955 48 0 44
1985
1999
AVERAGE 59 56 3 57
PRECIPITATION (IN)
TODAY 0.00 0.74 2000 0.06 -0.06 0.00
MONTH TO DATE T 0.61 -0.61 T
SINCE OCT 1 33.45 33.44 0.01 26.51
SINCE JAN 1 16.67 17.50 -0.83 13.11
SNOWFALL (IN)
TODAY 0.0 T 1953 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 3.0 2.3
SINCE JUL 1 3.0 2.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 6 9 -3 8
MONTH TO DATE 47 88 -41 77
SINCE MAR 1 1003 1057 -54 1004
SINCE JUL 1 3753 4104 -351 4161
COOLING
TODAY 0 0 0 0
MONTH TO DATE 4 0 4 0
SINCE MAR 1 4 1 3 0
SINCE JAN 1 4 1 3 0
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 5.0
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 500 AM
LOWEST 42 400 PM
AVERAGE 66
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 87 2020
MINIMUM TEMPERATURE (F) 48 37 1947
SUNRISE AND SUNSET
MAY 9 2026...........SUNRISE 540 AM PDT SUNSET 832 PM PDT
MAY 10 2026...........SUNRISE 539 AM PDT SUNSET 833 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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