954
CDUS46 KSEW 140120
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
620 PM PDT FRI SEP 13 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 13 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 64 444 PM 87 1999 73 -9 74
MINIMUM 52 542 AM 39 1952 54 -2 54
AVERAGE 58 63 -5 64
PRECIPITATION (IN)
TODAY T 0.51 1955 0.05 -0.05 0.00
MONTH TO DATE 0.24 0.59 -0.35 0.18
SINCE OCT 1 35.34 38.32 -2.98 29.45
SINCE JAN 1 18.19 22.38 -4.19 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 7 3 4 1
MONTH TO DATE 19 27 -8 19
SINCE SEP 1 19 27 -8 19
SINCE JUL 1 55 82 -27 31
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 37 22 15 19
SINCE SEP 1 37 22 15 19
SINCE JAN 1 310 255 55 371
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 5.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 400 AM
LOWEST 58 300 PM
AVERAGE 74
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 93 1979
MINIMUM TEMPERATURE (F) 54 46 1947
1955
1986
SUNRISE AND SUNSET
SEPTEMBER 13 2024.....SUNRISE 645 AM PDT SUNSET 724 PM PDT
SEPTEMBER 14 2024.....SUNRISE 646 AM PDT SUNSET 722 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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