033
CDUS46 KSEW 180116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT SAT MAY 17 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 17 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 62 218 PM 90 2008 67 -5 63
MINIMUM 52 1012 AM 39 1966 49 3 45
2011
AVERAGE 57 58 -1 54
PRECIPITATION (IN)
TODAY 0.18 0.72 1989 0.06 0.12 0.00
MONTH TO DATE 0.36 1.09 -0.73 0.30
SINCE OCT 1 26.87 33.92 -7.05 31.06
SINCE JAN 1 13.47 17.98 -4.51 13.91
SNOWFALL (IN)
TODAY 0.0 MM MM 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
TODAY 8 7 1 11
MONTH TO DATE 158 153 5 146
SINCE MAR 1 1085 1122 -37 1115
SINCE JUL 1 4242 4169 73 4026
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 7
SINCE MAR 1 0 1 -1 7
SINCE JAN 1 0 1 -1 7
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 400 AM
LOWEST 58 200 PM
AVERAGE 79
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 89 1958
MINIMUM TEMPERATURE (F) 49 37 1950
2003
SUNRISE AND SUNSET
MAY 17 2025...........SUNRISE 529 AM PDT SUNSET 843 PM PDT
MAY 18 2025...........SUNRISE 528 AM PDT SUNSET 844 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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