037
CDUS46 KSEW 180827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT SAT JUL 18 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 17 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 72 523 PM 96 1979 78 -6 86
MINIMUM 57 213 AM 48 1950 57 0 56
1953
1955
AVERAGE 65 68 -3 71
PRECIPITATION (IN)
YESTERDAY 0.00 0.35 1974 0.01 -0.01 0.00
MONTH TO DATE 0.36 0.37 -0.01 T
SINCE OCT 1 36.29 36.53 -0.24 27.76
SINCE JAN 1 19.51 20.59 -1.08 14.36
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 3.0 2.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 20 23 -3 5
SINCE JUN 1 115 141 -26 99
SINCE JUL 1 20 23 -3 5
COOLING
YESTERDAY 0 3 -3 6
MONTH TO DATE 26 41 -15 87
SINCE JUN 1 97 70 27 129
SINCE JAN 1 107 80 27 132
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 6.8
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 200 AM
LOWEST 42 400 PM
AVERAGE 63
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 93 1995
MINIMUM TEMPERATURE (F) 57 47 1952
SUNRISE AND SUNSET
JULY 18 2026..........SUNRISE 531 AM PDT SUNSET 859 PM PDT
JULY 19 2026..........SUNRISE 532 AM PDT SUNSET 858 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page