557
CDUS46 KSEW 200827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT THU JUL 20 2023
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 19 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 89 328 PM 95 1988 78 11 83
2015
MINIMUM 61 428 AM 48 1962 57 4 55
AVERAGE 75 68 7 69
PRECIPITATION (IN)
YESTERDAY 0.00 0.45 1993 0.01 -0.01 0.00
MONTH TO DATE 0.00 0.40 -0.40 0.18
SINCE OCT 1 28.91 36.56 -7.65 45.18
SINCE JAN 1 14.02 20.62 -6.60 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 25 -23 17
SINCE JUN 1 114 143 -29 157
SINCE JUL 1 2 25 -23 17
COOLING
YESTERDAY 10 4 6 4
MONTH TO DATE 83 48 35 38
SINCE JUN 1 112 77 35 69
SINCE JAN 1 147 87 60 69
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WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION N (0)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 7.9
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 62 300 AM
LOWEST 27 400 PM
AVERAGE 45
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 100 1994
MINIMUM TEMPERATURE (F) 57 50 1953
1955
1962
SUNRISE AND SUNSET
JULY 20 2023..........SUNRISE 533 AM PDT SUNSET 858 PM PDT
JULY 21 2023..........SUNRISE 534 AM PDT SUNSET 857 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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