634
CDUS46 KSEW 170845
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
145 AM PDT MON JUL 17 2023
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 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 83 405 PM 98 1979 78 5 71
MINIMUM 57 459 AM 50 1953 57 0 60
1968
AVERAGE 70 67 3 66
PRECIPITATION (IN)
YESTERDAY 0.00 0.65 2001 0.02 -0.02 0.00
MONTH TO DATE 0.00 0.36 -0.36 0.16
SINCE OCT 1 28.91 36.52 -7.61 45.16
SINCE JAN 1 14.02 20.58 -6.56 25.06
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 MM
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 2 22 -20 14
SINCE JUN 1 114 140 -26 154
SINCE JUL 1 2 22 -20 14
COOLING
YESTERDAY 5 3 2 1
MONTH TO DATE 64 38 26 34
SINCE JUN 1 93 67 26 65
SINCE JAN 1 128 77 51 65
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 5.2
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 500 AM
LOWEST 38 500 PM
AVERAGE 61
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 1979
MINIMUM TEMPERATURE (F) 57 48 1950
1953
1955
SUNRISE AND SUNSET
JULY 17 2023..........SUNRISE 530 AM PDT SUNSET 901 PM PDT
JULY 18 2023..........SUNRISE 531 AM PDT SUNSET 900 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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