740
CDUS46 KSEW 160826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT TUE MAY 16 2023
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 15 2023
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 88R 258 PM 85 2007 66 22 59
MINIMUM 58 1119 PM 38 1964 49 9 51
AVERAGE 73 58 15 55
PRECIPITATION (IN)
YESTERDAY 0.12 0.81 2011 0.06 0.06 0.65
MONTH TO DATE 0.91 0.98 -0.07 2.94
SINCE OCT 1 27.67 33.81 -6.14 41.45
SINCE JAN 1 12.78 17.87 -5.09 21.35
SNOWFALL (IN)
YESTERDAY 0.0 T 1974 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 8.1 9.2
SINCE JUL 1 8.1 9.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 8 -8 10
MONTH TO DATE 92 138 -46 215
SINCE MAR 1 1170 1107 63 1297
SINCE JUL 1 4257 4154 103 4554
COOLING
YESTERDAY 8 0 8 0
MONTH TO DATE 25 0 25 0
SINCE MAR 1 25 1 24 0
SINCE JAN 1 25 1 24 0
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NW (330)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 8.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 1100 PM
LOWEST 28 300 PM
AVERAGE 58
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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 2023...........SUNRISE 531 AM PDT SUNSET 841 PM PDT
MAY 17 2023...........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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