329
CDUS46 KSEW 160827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT THU APR 16 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 15 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 50 222 PM 75 2021 59 -9 66
MINIMUM 36 1145 PM 33 1967 43 -7 46
AVERAGE 43 51 -8 56
PRECIPITATION (IN)
YESTERDAY 0.36 0.75 1950 0.11 0.25 0.00
MONTH TO DATE 2.22 1.75 0.47 1.95
SINCE OCT 1 32.90 31.40 1.50 25.91
SINCE JAN 1 16.12 15.46 0.66 12.51
SNOWFALL (IN)
YESTERDAY 0.0 T 1968 0.0
1986
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 22 14 8 9
MONTH TO DATE 210 226 -16 208
SINCE MAR 1 795 783 12 754
SINCE JUL 1 3545 3830 -285 3911
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 4 RESULTANT WIND DIRECTION E (110)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 8.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 1000 PM
LOWEST 58 100 PM
AVERAGE 77
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 81 1947
1999
MINIMUM TEMPERATURE (F) 43 34 1960
1972
1976
SUNRISE AND SUNSET
APRIL 16 2026.........SUNRISE 618 AM PDT SUNSET 800 PM PDT
APRIL 17 2026.........SUNRISE 617 AM PDT SUNSET 802 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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