457
CDUS46 KSEW 190826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT TUE MAY 19 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 18 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 66 559 PM 89 1958 67 -1 62
MINIMUM 46 512 AM 37 1950 49 -3 45
2003
AVERAGE 56 58 -2 54
PRECIPITATION (IN)
YESTERDAY 0.00 0.72 2005 0.06 -0.06 0.00
MONTH TO DATE 0.49 1.15 -0.66 0.36
SINCE OCT 1 33.94 33.98 -0.04 26.87
SINCE JAN 1 17.16 18.04 -0.88 13.47
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 3.0 2.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 9 7 2 11
MONTH TO DATE 130 160 -30 171
SINCE MAR 1 1086 1129 -43 1098
SINCE JUL 1 3836 4176 -340 4255
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 6 0 6 0
SINCE MAR 1 6 1 5 0
SINCE JAN 1 6 1 5 0
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (120)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 5.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 700 AM
LOWEST 40 600 PM
AVERAGE 63
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 88 1963
MINIMUM TEMPERATURE (F) 49 38 1975
SUNRISE AND SUNSET
MAY 19 2026...........SUNRISE 527 AM PDT SUNSET 845 PM PDT
MAY 20 2026...........SUNRISE 526 AM PDT SUNSET 846 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