560
CDUS46 KSEW 190826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT MON APR 19 2021
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 18 2021...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2021
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 79 536 PM 89 2016 59 20 57
MINIMUM 50 619 AM 34 1950 42 8 48
1961
1964
AVERAGE 65 51 14 53
PRECIPITATION (IN)
YESTERDAY 0.00 0.48 2017 0.09 -0.09 0.05
MONTH TO DATE 0.27 1.77 -1.50 0.06
SINCE OCT 1 31.12 29.96 1.16 29.85
SINCE JAN 1 16.31 14.56 1.75 16.51
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 12.9 0.7
SINCE JUL 1 12.9 0.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 14 -14 12
MONTH TO DATE 247 280 -33 250
SINCE MAR 1 844 854 -10 868
SINCE JUL 1 3741 4108 -367 3800
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 59 500 AM
LOWEST 22 500 PM
AVERAGE 41
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 84 2016
MINIMUM TEMPERATURE (F) 42 33 1961
SUNRISE AND SUNSET
APRIL 19 2021.........SUNRISE 613 AM PDT SUNSET 805 PM PDT
APRIL 20 2021.........SUNRISE 611 AM PDT SUNSET 806 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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