953
CDUS46 KSEW 280834
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
134 AM PDT FRI JUL 28 2023
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 27 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 79 425 PM 95 1958 79 0 91
1998
MINIMUM 56 530 AM 46 1956 58 -2 61
AVERAGE 68 68 0 76
PRECIPITATION (IN)
YESTERDAY 0.00 0.30 1983 0.02 -0.02 0.00
MONTH TO DATE 0.09 0.53 -0.44 0.18
SINCE OCT 1 29.00 36.69 -7.69 45.18
SINCE JAN 1 14.11 20.75 -6.64 25.08
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 2 33 -31 17
SINCE JUN 1 114 151 -37 157
SINCE JUL 1 2 33 -31 17
COOLING
YESTERDAY 3 4 -1 11
MONTH TO DATE 108 80 28 90
SINCE JUN 1 137 109 28 121
SINCE JAN 1 172 119 53 121
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 500 AM
LOWEST 36 200 PM
AVERAGE 57
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 97 1958
1998
2009
MINIMUM TEMPERATURE (F) 58 47 1953
SUNRISE AND SUNSET
JULY 28 2023..........SUNRISE 542 AM PDT SUNSET 848 PM PDT
JULY 29 2023..........SUNRISE 543 AM PDT SUNSET 847 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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