131
CDUS46 KSEW 200826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT MON APR 20 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 19 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 74 405 PM 84 2016 60 14 59
MINIMUM 45 421 AM 33 1961 44 1 47
AVERAGE 60 52 8 53
PRECIPITATION (IN)
YESTERDAY 0.00 1.85 1965 0.11 -0.11 0.03
MONTH TO DATE 2.22 2.18 0.04 1.98
SINCE OCT 1 32.90 31.83 1.07 25.94
SINCE JAN 1 16.12 15.89 0.23 12.54
SNOWFALL (IN)
YESTERDAY 0.0 T 1985 0.0
2008
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 5 13 -8 12
MONTH TO DATE 260 280 -20 251
SINCE MAR 1 845 837 8 797
SINCE JUL 1 3595 3884 -289 3954
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 6 RESULTANT WIND DIRECTION N (350)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 7.8
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 500 AM
LOWEST 33 400 PM
AVERAGE 55
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 81 2016
MINIMUM TEMPERATURE (F) 44 30 1961
SUNRISE AND SUNSET
APRIL 20 2026.........SUNRISE 611 AM PDT SUNSET 806 PM PDT
APRIL 21 2026.........SUNRISE 609 AM PDT SUNSET 807 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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