Climatological Report (Daily)
Issued by NWS
Issued by NWS
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529
CDUS46 KSEW 110117
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PDT TUE SEP 10 2024
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 10 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 71 310 PM 92 2022 74 -3 80
MINIMUM 56 740 AM 39 1952 55 1 54
AVERAGE 64 64 0 67
PRECIPITATION (IN)
TODAY 0.00 0.64 2004 0.05 -0.05 0.00
MONTH TO DATE T 0.44 -0.44 0.13
SINCE OCT 1 35.10 38.17 -3.07 29.40
SINCE JAN 1 17.95 22.23 -4.28 14.51
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.3 8.1
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 1 2 -1 0
MONTH TO DATE 3 20 -17 15
SINCE SEP 1 3 20 -17 15
SINCE JUL 1 39 75 -36 27
COOLING
TODAY 0 1 -1 2
MONTH TO DATE 37 19 18 18
SINCE SEP 1 37 19 18 18
SINCE JAN 1 310 252 58 370
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 6.5
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 300 AM
LOWEST 36 300 PM
AVERAGE 67
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 93 2013
MINIMUM TEMPERATURE (F) 55 40 1952
SUNRISE AND SUNSET
SEPTEMBER 10 2024.....SUNRISE 641 AM PDT SUNSET 730 PM PDT
SEPTEMBER 11 2024.....SUNRISE 642 AM PDT SUNSET 728 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$