553
CDUS46 KSEW 180828
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
128 AM PDT WED MAR 18 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MARCH 17 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 53 415 PM 71 1947 54 -1 51
2024
MINIMUM 48 645 AM 27 1951 40 8 35
1955
AVERAGE 51 47 4 43
PRECIPITATION (IN)
YESTERDAY 0.46 1.05 1950 0.13 0.33 0.15
MONTH TO DATE 4.43 2.36 2.07 2.51
SINCE OCT 1 28.40 27.84 0.56 21.31
SINCE JAN 1 11.62 11.90 -0.28 7.91
SNOWFALL (IN)
YESTERDAY 0.0 T 1996 0.0
2009
2012
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 14 18 -4 22
MONTH TO DATE 332 321 11 337
SINCE MAR 1 332 321 11 337
SINCE JUL 1 3082 3368 -286 3494
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 8 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 8.8
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1000 PM
LOWEST 83 1200 AM
AVERAGE 92
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 76 2019
MINIMUM TEMPERATURE (F) 40 29 1954
SUNRISE AND SUNSET
MARCH 18 2026.........SUNRISE 716 AM PDT SUNSET 719 PM PDT
MARCH 19 2026.........SUNRISE 714 AM PDT SUNSET 721 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page