968
CDUS46 KSEW 310826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT SUN MAY 31 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 30 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 63 525 PM 87 1956 69 -6 77
2007
MINIMUM 45 439 AM 36 1951 51 -6 50
AVERAGE 54 60 -6 64
PRECIPITATION (IN)
YESTERDAY 0.00 1.14 2020 0.06 -0.06 0.00
MONTH TO DATE 1.14 1.83 -0.69 0.81
SINCE OCT 1 34.59 34.66 -0.07 27.32
SINCE JAN 1 17.81 18.72 -0.91 13.92
SNOWFALL (IN)
YESTERDAY 0.0 T 1955 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 11 6 5 1
MONTH TO DATE 202 236 -34 236
SINCE MAR 1 1158 1205 -47 1163
SINCE JUL 1 3908 4252 -344 4320
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 10 0 10 3
SINCE MAR 1 10 1 9 3
SINCE JAN 1 10 1 9 3
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NE (40)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 6.7
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 41 600 PM
AVERAGE 67
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 90 1964
MINIMUM TEMPERATURE (F) 51 35 1953
SUNRISE AND SUNSET
MAY 31 2026...........SUNRISE 517 AM PDT SUNSET 858 PM PDT
JUNE 1 2026..........SUNRISE 516 AM PDT SUNSET 859 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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