733
CDUS46 KSEW 010217
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PST TUE DEC 31 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 31 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 45 305 PM 56 1963 47 -2 50
1996
MINIMUM 35 739 AM 13 1968 37 -2 38
1978
AVERAGE 40 42 -2 44
PRECIPITATION (IN)
TODAY 0.00 1.30 1996 0.18 -0.18 0.00
MONTH TO DATE 5.50 5.72 -0.22 8.48
SINCE OCT 1 13.40 15.94 -2.54 17.15
SINCE JAN 1 32.18 39.34 -7.16 34.97
SNOWFALL (IN)
TODAY 0.0 9.3 1968 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 25 23 2 21
MONTH TO DATE 646 709 -63 596
SINCE DEC 1 646 709 -63 596
SINCE JUL 1 1687 1770 -83 1599
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 3 RESULTANT WIND DIRECTION SE (120)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 4.8
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 AM
LOWEST 68 100 PM
AVERAGE 81
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 58 2006
MINIMUM TEMPERATURE (F) 37 10 1952
SUNRISE AND SUNSET
DECEMBER 31 2024......SUNRISE 757 AM PST SUNSET 429 PM PST
JANUARY 1 2025.......SUNRISE 757 AM PST SUNSET 429 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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