621
CDUS46 KSEW 010116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT TUE MAR 31 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MARCH 31 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 58 321 PM 75 1987 56 2 53
MINIMUM 38 645 AM 30 1949 41 -3 42
AVERAGE 48 49 -1 48
PRECIPITATION (IN)
TODAY 0.00 0.57 1959 0.12 -0.12 0.05
MONTH TO DATE 6.71 4.17 2.54 5.16
SINCE OCT 1 30.68 29.65 1.03 23.96
SINCE JAN 1 13.90 13.71 0.19 10.56
SNOWFALL (IN)
TODAY 0.0 T 1982 0.0
1996
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 16 1 17
MONTH TO DATE 585 557 28 546
SINCE MAR 1 585 557 28 546
SINCE JUL 1 3335 3604 -269 3703
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 5 RESULTANT WIND DIRECTION N (0)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 300 AM
LOWEST 34 400 PM
AVERAGE 55
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 82 1987
MINIMUM TEMPERATURE (F) 42 29 1953
SUNRISE AND SUNSET
MARCH 31 2026.........SUNRISE 650 AM PDT SUNSET 738 PM PDT
APRIL 1 2026.........SUNRISE 648 AM PDT SUNSET 739 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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