771
CDUS46 KSEW 190130
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
630 PM PDT FRI APR 18 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 18 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 71 459 PM 89 2016 60 11 64
MINIMUM 43 539 AM 34 1950 44 -1 39
1961
1964
AVERAGE 57 52 5 52
PRECIPITATION (IN)
TODAY 0.00 0.48 2017 0.10 -0.10 0.00
MONTH TO DATE 1.95 2.07 -0.12 0.40
SINCE OCT 1 25.91 31.72 -5.81 30.27
SINCE JAN 1 12.51 15.78 -3.27 13.12
SNOWFALL (IN)
TODAY 0.0 MM MM 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 8 13 -5 13
MONTH TO DATE 239 267 -28 279
SINCE MAR 1 785 824 -39 828
SINCE JUL 1 3942 3871 71 3739
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 58 500 AM
LOWEST 19 300 PM
AVERAGE 39
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 84 2016
MINIMUM TEMPERATURE (F) 44 33 1961
SUNRISE AND SUNSET
APRIL 18 2025.........SUNRISE 614 AM PDT SUNSET 803 PM PDT
APRIL 19 2025.........SUNRISE 612 AM PDT SUNSET 805 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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