283
CDUS46 KSEW 160827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT SAT MAY 16 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 15 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 51 414 PM 88 2023 66 -15 56
MINIMUM 45 1159 PM 38 1964 49 -4 44
AVERAGE 48 58 -10 50
PRECIPITATION (IN)
YESTERDAY 0.26 0.81 2011 0.06 0.20 0.11
MONTH TO DATE 0.41 0.98 -0.57 0.15
SINCE OCT 1 33.86 33.81 0.05 26.66
SINCE JAN 1 17.08 17.87 -0.79 13.26
SNOWFALL (IN)
YESTERDAY 0.0 T 1974 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 17 8 9 15
MONTH TO DATE 95 138 -43 139
SINCE MAR 1 1051 1107 -56 1066
SINCE JUL 1 3801 4154 -353 4223
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
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WIND (MPH)
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 13.2
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 800 PM
LOWEST 74 800 AM
AVERAGE 84
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 84 1985
2008
MINIMUM TEMPERATURE (F) 49 40 2003
SUNRISE AND SUNSET
MAY 16 2026...........SUNRISE 531 AM PDT SUNSET 841 PM PDT
MAY 17 2026...........SUNRISE 530 AM PDT SUNSET 842 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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