Climatological Report (Daily)
Issued by NWS
Issued by NWS
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697
CDUS46 KSEW 130120
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
620 PM PDT THU SEP 12 2024
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 12 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 68 353 PM 85 1961 73 -5 69
1975
MINIMUM 55 628 AM 44 1949 54 1 55
1962
AVERAGE 62 64 -2 62
PRECIPITATION (IN)
TODAY 0.00 0.60 2004 0.05 -0.05 0.05
MONTH TO DATE 0.24 0.54 -0.30 0.18
SINCE OCT 1 35.34 38.27 -2.93 29.45
SINCE JAN 1 18.19 22.33 -4.14 14.56
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 3 2 1 3
MONTH TO DATE 12 24 -12 18
SINCE SEP 1 12 24 -12 18
SINCE JUL 1 48 79 -31 30
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 37 21 16 19
SINCE SEP 1 37 21 16 19
SINCE JAN 1 310 254 56 371
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 4.4
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 600 AM
LOWEST 61 400 PM
AVERAGE 79
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 87 1999
MINIMUM TEMPERATURE (F) 54 39 1952
SUNRISE AND SUNSET
SEPTEMBER 12 2024.....SUNRISE 643 AM PDT SUNSET 726 PM PDT
SEPTEMBER 13 2024.....SUNRISE 645 AM PDT SUNSET 724 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$