328
CDUS46 KSEW 090827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT THU OCT 09 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 8 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 61 431 PM 80 1951 63 -2 66
MINIMUM 48 600 AM 39 1949 49 -1 54
1961
AVERAGE 55 56 -1 60
PRECIPITATION (IN)
YESTERDAY T 1.16 1962 0.10 -0.10 0.36
MONTH TO DATE 0.30 0.72 -0.42 0.78
SINCE OCT 1 0.30 0.72 -0.42 0.78
SINCE JAN 1 16.57 24.12 -7.55 19.56
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 10 9 1 5
MONTH TO DATE 49 63 -14 60
SINCE SEP 1 100 165 -65 166
SINCE JUL 1 124 220 -96 204
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 2 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 6.0
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 300 AM
LOWEST 44 300 PM
AVERAGE 67
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 63 79 1996
MINIMUM TEMPERATURE (F) 49 35 1960
SUNRISE AND SUNSET
OCTOBER 9 2025.......SUNRISE 720 AM PDT SUNSET 632 PM PDT
OCTOBER 10 2025.......SUNRISE 721 AM PDT SUNSET 630 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