670
CDUS46 KSEW 200126
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
626 PM PDT TUE SEP 19 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 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 67 323 PM 82 1999 71 -4 77
MINIMUM 53 719 AM 40 1947 53 0 49
1957
AVERAGE 60 62 -2 63
PRECIPITATION (IN)
TODAY 0.00 0.79 1959 0.06 -0.06 0.00
MONTH TO DATE 0.29 0.91 -0.62 0.22
SINCE OCT 1 29.56 38.64 -9.08 45.45
SINCE JAN 1 14.67 22.70 -8.03 25.35
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 8.1 9.2
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 5 4 1 2
MONTH TO DATE 30 47 -17 16
SINCE SEP 1 30 47 -17 16
SINCE JUL 1 42 102 -60 36
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 26 28 -2 29
SINCE SEP 1 26 28 -2 29
SINCE JAN 1 378 261 117 373
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (130)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 800 AM
LOWEST 42 300 PM
AVERAGE 54
......................................................
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 2023.....SUNRISE 652 AM PDT SUNSET 713 PM PDT
SEPTEMBER 20 2023.....SUNRISE 653 AM PDT SUNSET 711 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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