979
CDUS46 KSEW 170826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT TUE MAR 17 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MARCH 16 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 56 551 PM 74 2024 54 2 50
MINIMUM 42 121 AM 29 1952 40 2 38
AVERAGE 49 47 2 44
PRECIPITATION (IN)
YESTERDAY 0.02 1.09 2014 0.14 -0.12 0.11
MONTH TO DATE 3.97 2.23 1.74 2.36
SINCE OCT 1 27.94 27.71 0.23 21.16
SINCE JAN 1 11.16 11.77 -0.61 7.76
SNOWFALL (IN)
YESTERDAY 0.0 0.4 1971 0.0
MONTH TO DATE 3.0 0.0
SINCE OCT 1 3.0 2.3
SINCE JUL 1 3.0 2.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 16 18 -2 21
MONTH TO DATE 318 303 15 315
SINCE MAR 1 318 303 15 315
SINCE JUL 1 3068 3350 -282 3472
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 7 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 7.6
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 100 AM
LOWEST 80 600 PM
AVERAGE 88
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 54 71 1947
2024
MINIMUM TEMPERATURE (F) 40 27 1951
1955
SUNRISE AND SUNSET
MARCH 17 2026.........SUNRISE 718 AM PDT SUNSET 718 PM PDT
MARCH 18 2026.........SUNRISE 716 AM PDT SUNSET 719 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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