609
CDUS46 KSEW 170826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT THU AUG 17 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 16 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 95 324 PM 98 1967 78 17 83
2020
MINIMUM 67 523 AM 47 1946 57 10 58
AVERAGE 81 68 13 71
PRECIPITATION (IN)
YESTERDAY 0.00 0.41 1995 0.03 -0.03 0.00
MONTH TO DATE 0.04 0.41 -0.37 0.03
SINCE OCT 1 29.04 37.17 -8.13 45.21
SINCE JAN 1 14.15 21.23 -7.08 25.11
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 1 -1 0
MONTH TO DATE 0 9 -9 2
SINCE JUN 1 114 158 -44 159
SINCE JUL 1 2 40 -38 19
COOLING
YESTERDAY 16 3 13 6
MONTH TO DATE 123 61 62 69
SINCE JUN 1 271 186 85 246
SINCE JAN 1 306 196 110 246
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 500 AM
LOWEST 24 300 PM
AVERAGE 46
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 1977
MINIMUM TEMPERATURE (F) 57 45 1951
SUNRISE AND SUNSET
AUGUST 17 2023........SUNRISE 608 AM PDT SUNSET 818 PM PDT
AUGUST 18 2023........SUNRISE 609 AM PDT SUNSET 816 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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