311
CDUS46 KSEW 220117
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PDT THU MAR 21 2024
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MARCH 21 2024
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 56 250 PM 69 1992 55 1 57
MINIMUM 46 719 AM 29 1952 41 5 42
1954
2009
AVERAGE 51 48 3 50
PRECIPITATION (IN)
TODAY T 2.04 1948 0.14 -0.14 T
MONTH TO DATE 1.17 2.90 -1.73 2.12
SINCE OCT 1 28.47 28.38 0.09 22.46
SINCE JAN 1 11.32 12.44 -1.12 7.57
SNOWFALL (IN)
TODAY 0.0 0.2 1994 0.0
MONTH TO DATE 0.3 T
SINCE OCT 1 0.3 8.1
SINCE JUL 1 0.3 8.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 14 17 -3 15
MONTH TO DATE 396 391 5 407
SINCE MAR 1 396 391 5 407
SINCE JUL 1 3286 3438 -152 3494
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 S (180)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 5.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1200 AM
LOWEST 61 1100 AM
AVERAGE 77
......................................................
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 2024.........SUNRISE 709 AM PDT SUNSET 724 PM PDT
MARCH 22 2024.........SUNRISE 707 AM PDT SUNSET 726 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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