801
CDUS46 KSEW 120828
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
128 AM PDT FRI MAY 12 2023
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 11 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 75 423 PM 87 1971 66 9 59
MINIMUM 50 545 AM 35 1953 48 2 42
AVERAGE 63 57 6 51
PRECIPITATION (IN)
YESTERDAY 0.00 0.47 1954 0.06 -0.06 0.02
2017
MONTH TO DATE 0.79 0.74 0.05 1.97
SINCE OCT 1 27.55 33.57 -6.02 40.48
SINCE JAN 1 12.66 17.63 -4.97 20.38
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 0
DEGREE DAYS
HEATING
YESTERDAY 2 9 -7 14
MONTH TO DATE 92 106 -14 162
SINCE MAR 1 1170 1075 95 1244
SINCE JUL 1 4257 4122 135 4501
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 1 -1 0
SINCE JAN 1 0 1 -1 0
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (0)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 500 AM
LOWEST 29 400 PM
AVERAGE 53
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 81 1959
MINIMUM TEMPERATURE (F) 48 38 1964
1985
2011
SUNRISE AND SUNSET
MAY 12 2023...........SUNRISE 536 AM PDT SUNSET 836 PM PDT
MAY 13 2023...........SUNRISE 535 AM PDT SUNSET 837 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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