629
CDUS46 KSEW 200826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT WED MAY 20 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 19 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 65 343 PM 88 1963 67 -2 61
MINIMUM 51 1159 PM 38 1975 49 2 47
AVERAGE 58 58 0 54
PRECIPITATION (IN)
YESTERDAY 0.00 0.70 1968 0.06 -0.06 0.24
MONTH TO DATE 0.49 1.21 -0.72 0.60
SINCE OCT 1 33.94 34.04 -0.10 27.11
SINCE JAN 1 17.16 18.10 -0.94 13.71
SNOWFALL (IN)
YESTERDAY 0.0 T 1993 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 7 7 0 11
MONTH TO DATE 137 167 -30 182
SINCE MAR 1 1093 1136 -43 1109
SINCE JUL 1 3843 4183 -340 4266
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 4 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 5.5
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 100 AM
LOWEST 58 300 PM
AVERAGE 72
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 92 1963
MINIMUM TEMPERATURE (F) 50 40 1960
SUNRISE AND SUNSET
MAY 20 2026...........SUNRISE 526 AM PDT SUNSET 846 PM PDT
MAY 21 2026...........SUNRISE 525 AM PDT SUNSET 847 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