746
CDUS46 KSEW 210126
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
626 PM PDT WED SEP 20 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 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 64 438 PM 88 1974 71 -7 78
MINIMUM 51 621 AM 40 1949 53 -2 55
AVERAGE 58 62 -4 67
PRECIPITATION (IN)
TODAY 0.41 1.05 1972 0.05 0.36 0.00
MONTH TO DATE 0.70 0.96 -0.26 0.22
SINCE OCT 1 29.97 38.69 -8.72 45.45
SINCE JAN 1 15.08 22.75 -7.67 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 7 4 3 0
MONTH TO DATE 37 51 -14 16
SINCE SEP 1 37 51 -14 16
SINCE JUL 1 49 106 -57 36
COOLING
TODAY 0 1 -1 2
MONTH TO DATE 26 29 -3 31
SINCE SEP 1 26 29 -3 31
SINCE JAN 1 378 262 116 375
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (360)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 8.3
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 54 400 PM
AVERAGE 74
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 88 1952
1974
MINIMUM TEMPERATURE (F) 53 39 1955
1960
SUNRISE AND SUNSET
SEPTEMBER 20 2023.....SUNRISE 653 AM PDT SUNSET 711 PM PDT
SEPTEMBER 21 2023.....SUNRISE 654 AM PDT SUNSET 709 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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