855
CDUS46 KSEW 310927
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PST TUE DEC 31 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 30 2024...
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)
YESTERDAY
MAXIMUM 45 408 PM 56 1945 47 -2 56
1958
2023
MINIMUM 39 514 AM 6 1968 37 2 43
AVERAGE 42 42 0 50
PRECIPITATION (IN)
YESTERDAY 0.01 1.06 1980 0.18 -0.17 0.10
MONTH TO DATE 5.50 5.54 -0.04 8.48
SINCE OCT 1 13.40 15.76 -2.36 17.15
SINCE JAN 1 32.18 39.16 -6.98 34.97
SNOWFALL (IN)
YESTERDAY 0.0 3.7 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
YESTERDAY 23 23 0 15
MONTH TO DATE 621 686 -65 575
SINCE DEC 1 621 686 -65 575
SINCE JUL 1 1662 1747 -85 1578
COOLING
YESTERDAY 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 11 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 10.6
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 300 AM
LOWEST 80 100 PM
AVERAGE 85
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 56 1963
1996
MINIMUM TEMPERATURE (F) 37 13 1968
1978
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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