168
CDUS46 KSEW 200831
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
131 AM PDT SAT OCT 20 2018
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 19 2018...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2018
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 61 347 PM 72 2014 58 3 54
MINIMUM 45 642 AM 28 1949 45 0 50
AVERAGE 53 52 1 52
PRECIPITATION (IN)
YESTERDAY 0.00 1.05 1958 0.12 -0.12 1.04
MONTH TO DATE 1.09 1.73 -0.64 3.03
SINCE OCT 1 1.09 1.73 -0.64 3.03
SINCE JAN 1 21.54 23.82 -2.28 32.04
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 12 13 -1 13
MONTH TO DATE 187 202 -15 220
SINCE SEP 1 279 334 -55 298
SINCE JUL 1 303 419 -116 305
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 19 21 -2 75
SINCE JAN 1 404 189 215 392
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WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 2.8
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 800 AM
LOWEST 64 300 PM
AVERAGE 82
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 69 1987
MINIMUM TEMPERATURE (F) 45 29 1949
SUNRISE AND SUNSET
OCTOBER 20 2018.......SUNRISE 735 AM PDT SUNSET 612 PM PDT
OCTOBER 21 2018.......SUNRISE 737 AM PDT SUNSET 610 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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