304
CDUS46 KSEW 010120
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
620 PM PDT SAT SEP 30 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 30 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 62 327 PM 82 1992 67 -5 70
MINIMUM 48 245 AM 36 1950 51 -3 53
AVERAGE 55 59 -4 62
PRECIPITATION (IN)
TODAY 0.00 1.65 1953 0.08 -0.08 0.00
MONTH TO DATE 3.44 1.61 1.83 0.25
SINCE OCT 1 32.71 39.34 -6.63 45.48
SINCE JAN 1 17.82 23.40 -5.58 25.38
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 10 6 4 3
MONTH TO DATE 108 103 5 35
SINCE SEP 1 108 103 5 35
SINCE JUL 1 120 158 -38 55
COOLING
TODAY 0 0 0 0
MONTH TO DATE 26 30 -4 37
SINCE SEP 1 26 30 -4 37
SINCE JAN 1 378 263 115 381
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION NE (50)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 7.2
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 500 AM
LOWEST 56 300 PM
AVERAGE 71
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 89 1987
MINIMUM TEMPERATURE (F) 51 35 1950
SUNRISE AND SUNSET
SEPTEMBER 30 2023.....SUNRISE 707 AM PDT SUNSET 651 PM PDT
OCTOBER 1 2023.......SUNRISE 708 AM PDT SUNSET 649 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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