354
CDUS46 KSEW 160826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT SAT SEP 16 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 15 2023...
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)
YESTERDAY
MAXIMUM 84 413 PM 93 1967 72 12 69
MINIMUM 54 610 AM 42 1952 54 0 57
AVERAGE 69 63 6 63
PRECIPITATION (IN)
YESTERDAY 0.00 0.69 1959 0.05 -0.05 0.00
MONTH TO DATE 0.18 0.69 -0.51 0.07
SINCE OCT 1 29.45 38.42 -8.97 45.30
SINCE JAN 1 14.56 22.48 -7.92 25.20
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 0 3 -3 2
MONTH TO DATE 19 33 -14 6
SINCE SEP 1 19 33 -14 6
SINCE JUL 1 31 88 -57 26
COOLING
YESTERDAY 4 1 3 0
MONTH TO DATE 24 24 0 29
SINCE SEP 1 24 24 0 29
SINCE JAN 1 376 257 119 373
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (340)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 5.0
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 700 AM
LOWEST 23 400 PM
AVERAGE 55
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 91 1967
MINIMUM TEMPERATURE (F) 54 44 1952
1992
SUNRISE AND SUNSET
SEPTEMBER 16 2023.....SUNRISE 648 AM PDT SUNSET 719 PM PDT
SEPTEMBER 17 2023.....SUNRISE 649 AM PDT SUNSET 717 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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