649
CDUS46 KSEW 210826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT FRI APR 21 2023
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 20 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 47 1149 AM 81 2016 60 -13 54
MINIMUM 37 446 AM 30 1961 44 -7 38
AVERAGE 42 52 -10 46
PRECIPITATION (IN)
YESTERDAY 0.31 0.49 1946 0.10 0.21 0.08
MONTH TO DATE 3.23 2.28 0.95 1.80
SINCE OCT 1 26.13 31.93 -5.80 37.60
SINCE JAN 1 11.24 15.99 -4.75 17.50
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE T T
SINCE OCT 1 8.1 9.2
SINCE JUL 1 8.1 9.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 23 13 10 19
MONTH TO DATE 391 293 98 387
SINCE MAR 1 983 850 133 939
SINCE JUL 1 4070 3897 173 4196
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
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WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 8.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 600 PM
LOWEST 55 1000 AM
AVERAGE 76
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 76 1982
MINIMUM TEMPERATURE (F) 44 29 1951
SUNRISE AND SUNSET
APRIL 21 2023.........SUNRISE 610 AM PDT SUNSET 807 PM PDT
APRIL 22 2023.........SUNRISE 608 AM PDT SUNSET 808 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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