103
CDUS46 KSEW 100840
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
140 AM PDT THU APR 10 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 9 2025
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)
YESTERDAY
MAXIMUM 60 303 PM 73 1959 58 2 55
MINIMUM 40 433 AM 33 1945 42 -2 46
AVERAGE 50 50 0 51
PRECIPITATION (IN)
YESTERDAY 0.00 0.96 1971 0.12 -0.12 0.04
MONTH TO DATE 1.59 1.07 0.52 0.40
SINCE OCT 1 25.55 30.72 -5.17 30.27
SINCE JAN 1 12.15 14.78 -2.63 13.12
SNOWFALL (IN)
YESTERDAY 0.0 T 1991 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
YESTERDAY 15 15 0 14
MONTH TO DATE 128 140 -12 147
SINCE MAR 1 674 697 -23 696
SINCE JUL 1 3831 3744 87 3607
COOLING
YESTERDAY 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 1 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 46 300 PM
AVERAGE 70
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 74 1988
2004
MINIMUM TEMPERATURE (F) 43 30 1953
SUNRISE AND SUNSET
APRIL 10 2025.........SUNRISE 629 AM PDT SUNSET 752 PM PDT
APRIL 11 2025.........SUNRISE 627 AM PDT SUNSET 754 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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