158
CDUS46 KSEW 220116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT SAT MAR 21 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MARCH 21 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 52 402 PM 69 1992 55 -3 52
MINIMUM 43 944 AM 29 1952 41 2 39
1954
2009
AVERAGE 48 48 0 46
PRECIPITATION (IN)
TODAY 0.00 2.04 1948 0.14 -0.14 0.23
MONTH TO DATE 5.45 2.90 2.55 3.17
SINCE OCT 1 29.42 28.38 1.04 21.97
SINCE JAN 1 12.64 12.44 0.20 8.57
SNOWFALL (IN)
TODAY 0.0 0.2 1994 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
TODAY 17 17 0 19
MONTH TO DATE 386 391 -5 415
SINCE MAR 1 386 391 -5 415
SINCE JUL 1 3136 3438 -302 3572
COOLING
TODAY 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 6 RESULTANT WIND DIRECTION N (360)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 8.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 1200 AM
LOWEST 46 300 PM
AVERAGE 64
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 68 1979
MINIMUM TEMPERATURE (F) 41 28 1952
SUNRISE AND SUNSET
MARCH 21 2026.........SUNRISE 710 AM PDT SUNSET 724 PM PDT
MARCH 22 2026.........SUNRISE 708 AM PDT SUNSET 725 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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