647
CDUS46 KSEW 190830
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
130 AM PDT SUN OCT 19 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 18 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 54 338 PM 71 2023 60 -6 53
MINIMUM 45 343 AM 32 1949 47 -2 44
AVERAGE 50 53 -3 49
PRECIPITATION (IN)
YESTERDAY 0.37 2.23 1947 0.13 0.24 0.07
MONTH TO DATE 0.97 1.88 -0.91 0.99
SINCE OCT 1 0.97 1.88 -0.91 0.99
SINCE JAN 1 17.24 25.28 -8.04 19.77
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 15 12 3 16
MONTH TO DATE 175 169 6 161
SINCE SEP 1 226 271 -45 267
SINCE JUL 1 250 326 -76 305
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 34 30 4 42
SINCE JAN 1 328 263 65 315
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 7.1
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1000 PM
LOWEST 64 200 PM
AVERAGE 81
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 72 2014
MINIMUM TEMPERATURE (F) 46 28 1949
SUNRISE AND SUNSET
OCTOBER 19 2025.......SUNRISE 734 AM PDT SUNSET 613 PM PDT
OCTOBER 20 2025.......SUNRISE 736 AM PDT SUNSET 611 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