507
CDUS46 KSEW 210834
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
134 AM PDT SUN MAY 21 2023
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 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 78 343 PM 92 1963 67 11 61
MINIMUM 54 458 AM 40 1960 50 4 41
AVERAGE 66 58 8 51
PRECIPITATION (IN)
YESTERDAY 0.01 0.56 2007 0.05 -0.04 0.00
MONTH TO DATE 0.92 1.26 -0.34 3.18
SINCE OCT 1 27.68 34.09 -6.41 41.69
SINCE JAN 1 12.79 18.15 -5.36 21.59
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 8.1 9.2
SINCE JUL 1 8.1 9.2
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 0 7 -7 14
MONTH TO DATE 92 174 -82 280
SINCE MAR 1 1170 1143 27 1362
SINCE JUL 1 4257 4190 67 4619
COOLING
YESTERDAY 1 0 1 0
MONTH TO DATE 31 0 31 0
SINCE MAR 1 31 1 30 0
SINCE JAN 1 31 1 30 0
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 5.6
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 500 AM
LOWEST 37 800 PM
AVERAGE 64
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 93 1963
MINIMUM TEMPERATURE (F) 50 39 1960
SUNRISE AND SUNSET
MAY 21 2023...........SUNRISE 526 AM PDT SUNSET 847 PM PDT
MAY 22 2023...........SUNRISE 525 AM PDT SUNSET 848 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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