402
CDUS46 KSEW 310118
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
618 PM PDT FRI MAY 30 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 30 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 77 350 PM 87 1956 69 8 63
2007
MINIMUM 50 527 AM 36 1951 51 -1 48
AVERAGE 64 60 4 56
PRECIPITATION (IN)
TODAY 0.00 1.14 2020 0.06 -0.06 T
MONTH TO DATE 0.81 1.83 -1.02 1.54
SINCE OCT 1 27.32 34.66 -7.34 32.30
SINCE JAN 1 13.92 18.72 -4.80 15.15
SNOWFALL (IN)
TODAY 0.0 T 1955 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 2.3 0.3
SINCE JUL 1 2.3 0.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 1 6 -5 9
MONTH TO DATE 236 236 0 287
SINCE MAR 1 1163 1205 -42 1256
SINCE JUL 1 4320 4252 68 4167
COOLING
TODAY 0 0 0 0
MONTH TO DATE 3 0 3 7
SINCE MAR 1 3 1 2 7
SINCE JAN 1 3 1 2 7
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION N (350)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 5.8
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 200 AM
LOWEST 29 300 PM
AVERAGE 55
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 90 1964
MINIMUM TEMPERATURE (F) 51 35 1953
SUNRISE AND SUNSET
MAY 30 2025...........SUNRISE 517 AM PDT SUNSET 857 PM PDT
MAY 31 2025...........SUNRISE 517 AM PDT SUNSET 858 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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