322
CDUS46 KSEW 180116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT THU AUG 17 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 17 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 91 350 PM 96 1977 78 13 90
MINIMUM 65 450 AM 45 1951 57 8 63
AVERAGE 78 68 10 77
PRECIPITATION (IN)
TODAY 0.00 0.93 1995 0.03 -0.03 0.00
MONTH TO DATE 0.04 0.44 -0.40 0.03
SINCE OCT 1 29.04 37.20 -8.16 45.21
SINCE JAN 1 14.15 21.26 -7.11 25.11
SNOWFALL (IN)
TODAY MM 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 MM
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 0 10 -10 2
SINCE JUN 1 114 159 -45 159
SINCE JUL 1 2 41 -39 19
COOLING
TODAY 13 3 10 12
MONTH TO DATE 136 64 72 81
SINCE JUN 1 284 189 95 258
SINCE JAN 1 319 199 120 258
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 3.8
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 500 AM
LOWEST 31 300 PM
AVERAGE 52
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 88 1991
MINIMUM TEMPERATURE (F) 57 47 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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