797
CDUS46 KSEW 300827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT THU APR 30 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 29 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 66 242 PM 80 1976 63 3 59
MINIMUM 47 535 AM 31 1952 45 2 47
AVERAGE 57 54 3 53
PRECIPITATION (IN)
YESTERDAY 0.00 1.06 1959 0.08 -0.08 0.12
MONTH TO DATE 2.77 3.10 -0.33 2.55
SINCE OCT 1 33.45 32.75 0.70 26.51
SINCE JAN 1 16.67 16.81 -0.14 13.11
SNOWFALL (IN)
YESTERDAY 0.0 T 1954 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 MM
DEGREE DAYS
HEATING
YESTERDAY 8 11 -3 12
MONTH TO DATE 368 401 -33 368
SINCE MAR 1 953 958 -5 914
SINCE JUL 1 3703 4005 -302 4071
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
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WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION N (360)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.9
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 100 AM
LOWEST 47 400 PM
AVERAGE 70
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 63 85 1976
MINIMUM TEMPERATURE (F) 46 32 1954
SUNRISE AND SUNSET
APRIL 30 2026.........SUNRISE 554 AM PDT SUNSET 820 PM PDT
MAY 1 2026...........SUNRISE 552 AM PDT SUNSET 821 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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