311
CDUS46 KSEW 160838
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
138 AM PDT SUN APR 16 2023
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 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 51 1141 AM 75 2021 59 -8 50
MINIMUM 42 520 AM 33 1967 43 -1 36
AVERAGE 47 51 -4 43
PRECIPITATION (IN)
YESTERDAY 0.02 0.75 1950 0.11 -0.09 0.00
MONTH TO DATE 2.39 1.75 0.64 1.34
SINCE OCT 1 25.29 31.40 -6.11 37.14
SINCE JAN 1 10.40 15.46 -5.06 17.04
SNOWFALL (IN)
YESTERDAY MM T 1968 0.0
1986
MONTH TO DATE T T
SINCE OCT 1 8.1 9.2
SINCE JUL 1 8.1 9.2
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 18 14 4 22
MONTH TO DATE 285 226 59 293
SINCE MAR 1 877 783 94 845
SINCE JUL 1 3964 3830 134 4102
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 5 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 600 AM
LOWEST 63 1200 PM
AVERAGE 73
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 81 1947
1999
MINIMUM TEMPERATURE (F) 43 34 1960
1972
1976
SUNRISE AND SUNSET
APRIL 16 2023.........SUNRISE 619 AM PDT SUNSET 800 PM PDT
APRIL 17 2023.........SUNRISE 617 AM PDT SUNSET 801 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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