342
CDUS46 KSEW 210219
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
619 PM PST FRI DEC 20 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 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 59R 1157 AM 59 2018 46 13 51
MINIMUM 45 402 AM 14 1990 37 8 38
2008
AVERAGE 52 42 10 45
PRECIPITATION (IN)
TODAY T 3.25 2019 0.18 -0.18 0.00
MONTH TO DATE 2.91 3.68 -0.77 6.87
SINCE OCT 1 10.81 13.90 -3.09 15.54
SINCE JAN 1 29.59 37.30 -7.71 33.36
SNOWFALL (IN)
TODAY 0.0 3.0 2008 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 13 23 -10 20
MONTH TO DATE 434 453 -19 392
SINCE DEC 1 434 453 -19 392
SINCE JUL 1 1475 1514 -39 1395
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 315 263 52 378
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION E (110)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 700 AM
LOWEST 55 1200 PM
AVERAGE 71
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 59 2020
MINIMUM TEMPERATURE (F) 37 12 1990
SUNRISE AND SUNSET
DECEMBER 20 2024......SUNRISE 754 AM PST SUNSET 421 PM PST
DECEMBER 21 2024......SUNRISE 754 AM PST SUNSET 421 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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