585
CDUS46 KSEW 180827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT SAT MAY 18 2024
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 17 2024
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 63 245 PM 90 2008 67 -4 80
MINIMUM 45 556 AM 39 1966 49 -4 54
2011
AVERAGE 54 58 -4 67
PRECIPITATION (IN)
YESTERDAY 0.00 0.72 1989 0.06 -0.06 0.00
MONTH TO DATE 0.30 1.09 -0.79 0.91
SINCE OCT 1 30.85 33.92 -3.07 27.67
SINCE JAN 1 13.70 17.98 -4.28 12.78
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.3 8.1
SINCE JUL 1 0.3 8.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 11 7 4 0
MONTH TO DATE 146 153 -7 92
SINCE MAR 1 1115 1122 -7 1170
SINCE JUL 1 4005 4169 -164 4257
COOLING
YESTERDAY 0 0 0 2
MONTH TO DATE 7 0 7 29
SINCE MAR 1 7 1 6 29
SINCE JAN 1 7 1 6 29
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WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 11.0
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 500 AM
LOWEST 38 200 PM
AVERAGE 57
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 89 1958
MINIMUM TEMPERATURE (F) 49 37 1950
2003
SUNRISE AND SUNSET
MAY 18 2024...........SUNRISE 528 AM PDT SUNSET 844 PM PDT
MAY 19 2024...........SUNRISE 527 AM PDT SUNSET 845 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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