981
CDUS46 KSEW 180826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT FRI APR 18 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 17 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 65 306 PM 80 2016 59 6 59
2021
MINIMUM 43 537 AM 33 1964 43 0 36
AVERAGE 54 51 3 48
PRECIPITATION (IN)
YESTERDAY 0.00 0.73 2014 0.11 -0.11 0.00
MONTH TO DATE 1.95 1.97 -0.02 0.40
SINCE OCT 1 25.91 31.62 -5.71 30.27
SINCE JAN 1 12.51 15.68 -3.17 13.12
SNOWFALL (IN)
YESTERDAY 0.0 1.2 1972 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 2.3 0.3
SINCE JUL 1 2.3 0.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 11 14 -3 17
MONTH TO DATE 231 254 -23 266
SINCE MAR 1 777 811 -34 815
SINCE JUL 1 3934 3858 76 3726
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 8.2
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 65 600 AM
LOWEST 14 300 PM
AVERAGE 40
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 89 2016
MINIMUM TEMPERATURE (F) 44 34 1950
1961
1964
SUNRISE AND SUNSET
APRIL 18 2025.........SUNRISE 614 AM PDT SUNSET 803 PM PDT
APRIL 19 2025.........SUNRISE 612 AM PDT SUNSET 805 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