515
CDUS46 KSEW 200116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT THU SEP 19 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 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 68 356 PM 82 1999 71 -3 67
MINIMUM 52 506 AM 40 1947 53 -1 53
1957
AVERAGE 60 62 -2 60
PRECIPITATION (IN)
TODAY 0.00 0.79 1959 0.06 -0.06 T
MONTH TO DATE 0.39 0.91 -0.52 0.29
SINCE OCT 1 35.49 38.64 -3.15 29.56
SINCE JAN 1 18.34 22.70 -4.36 14.67
SNOWFALL (IN)
TODAY MM 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 MM
DEGREE DAYS
HEATING
TODAY 5 4 1 5
MONTH TO DATE 49 47 2 30
SINCE SEP 1 49 47 2 30
SINCE JUL 1 87 102 -15 42
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 37 28 9 26
SINCE SEP 1 37 28 9 26
SINCE JAN 1 310 261 49 378
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 400 AM
LOWEST 59 200 PM
AVERAGE 78
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 88 1974
MINIMUM TEMPERATURE (F) 53 40 1949
SUNRISE AND SUNSET
SEPTEMBER 19 2024.....SUNRISE 653 AM PDT SUNSET 712 PM PDT
SEPTEMBER 20 2024.....SUNRISE 654 AM PDT SUNSET 710 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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