950
CDUS46 KSEW 170827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1227 AM PST MON FEB 17 2020
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 16 2020...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2020
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 48 141 PM 59 2015 50 -2 44
MINIMUM 38 1159 PM 13 1956 37 1 36
AVERAGE 43 43 0 40
PRECIPITATION (IN)
YESTERDAY T 1.83 1949 0.12 -0.12 0.15
MONTH TO DATE 3.54 2.06 1.48 4.08
SINCE OCT 1 26.11 23.03 3.08 23.19
SINCE JAN 1 12.77 7.63 5.14 7.91
SNOWFALL (IN)
YESTERDAY MM 3.5 1990 0.0
MONTH TO DATE T 20.2
SINCE OCT 1 0.7 20.2
SINCE JUL 1 0.7 20.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 22 22 0 25
MONTH TO DATE 345 352 -7 477
SINCE DEC 1 1588 1818 -230 1726
SINCE JUL 1 2665 3001 -336 2669
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
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WIND (MPH)
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 9.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 600 AM
LOWEST 65 100 PM
AVERAGE 79
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 50 63 2016
MINIMUM TEMPERATURE (F) 37 23 1993
1990
SUNRISE AND SUNSET
FEBRUARY 17 2020......SUNRISE 712 AM PST SUNSET 535 PM PST
FEBRUARY 18 2020......SUNRISE 710 AM PST SUNSET 537 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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