566
CDUS46 KSEW 110826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT MON MAY 11 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 10 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 66 356 PM 87 2020 65 1 63
MINIMUM 48 441 AM 37 1947 48 0 49
AVERAGE 57 56 1 56
PRECIPITATION (IN)
YESTERDAY 0.00 0.61 2000 0.07 -0.07 T
MONTH TO DATE T 0.68 -0.68 T
SINCE OCT 1 33.45 33.51 -0.06 26.51
SINCE JAN 1 16.67 17.57 -0.90 13.11
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 3.0 2.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 8 9 -1 9
MONTH TO DATE 55 97 -42 86
SINCE MAR 1 1011 1066 -55 1013
SINCE JUL 1 3761 4113 -352 4170
COOLING
YESTERDAY 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 1 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 500 AM
LOWEST 48 500 PM
AVERAGE 71
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 87 1971
MINIMUM TEMPERATURE (F) 48 35 1953
SUNRISE AND SUNSET
MAY 11 2026...........SUNRISE 537 AM PDT SUNSET 835 PM PDT
MAY 12 2026...........SUNRISE 536 AM PDT SUNSET 836 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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