861
CDUS46 KSEW 010217
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PST SUN DEC 31 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 31 2023...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 50 118 PM 56 1963 47 3 49
1996
MINIMUM 39 520 AM 13 1968 37 2 43
1978
AVERAGE 45 42 3 46
PRECIPITATION (IN)
TODAY 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)
TODAY 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
TODAY 20 23 -3 19
MONTH TO DATE 595 709 -114 805
SINCE DEC 1 595 709 -114 805
SINCE JUL 1 1598 1770 -172 1755
COOLING
TODAY 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 3 RESULTANT WIND DIRECTION S (170)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 3.5
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 500 AM
LOWEST 71 100 PM
AVERAGE 86
......................................................
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 2023......SUNRISE 757 AM PST SUNSET 428 PM PST
JANUARY 1 2024.......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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page