620
CDUS46 KSEW 010944
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
144 AM PST MON JAN 01 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 31 2023...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 50 118 PM 56 1963 47 3 49
1996
MINIMUM 38 1159 PM 13 1968 37 1 43
1978
AVERAGE 44 42 2 46
PRECIPITATION (IN)
YESTERDAY 0.00 1.30 1996 0.18 -0.18 0.01
MONTH TO DATE 8.48 5.72 2.76 7.55
SINCE OCT 1 17.15 15.94 1.21 14.89
SINCE JAN 1 34.97 39.34 -4.37 40.27
SNOWFALL (IN)
YESTERDAY 0.0 9.3 1968 0.0
MONTH TO DATE 0.0 4.7
SINCE OCT 1 0.0 5.8
SINCE JUL 1 0.0 5.8
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 21 23 -2 19
MONTH TO DATE 596 709 -113 805
SINCE DEC 1 596 709 -113 805
SINCE JUL 1 1599 1770 -171 1755
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 378 263 115 394
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 3.5
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 500 AM
LOWEST 71 100 PM
AVERAGE 86
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 58 2006
MINIMUM TEMPERATURE (F) 37 10 1952
SUNRISE AND SUNSET
JANUARY 1 2024.......SUNRISE 757 AM PST SUNSET 429 PM PST
JANUARY 2 2024.......SUNRISE 757 AM PST SUNSET 430 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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