319
CDUS46 KSEW 150845
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
145 AM PDT SUN SEP 15 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 14 2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 66 110 PM 93 1979 72 -6 77
MINIMUM 56 1159 PM 46 1947 54 2 54
1955
1986
AVERAGE 61 63 -2 66
PRECIPITATION (IN)
YESTERDAY 0.09 0.73 1949 0.05 0.04 0.00
MONTH TO DATE 0.37 0.64 -0.27 0.18
SINCE OCT 1 35.47 38.37 -2.90 29.45
SINCE JAN 1 18.32 22.43 -4.11 14.56
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.3 8.1
SINCE JUL 1 0.0 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 4 3 1 0
MONTH TO DATE 23 30 -7 19
SINCE SEP 1 23 30 -7 19
SINCE JUL 1 59 85 -26 31
COOLING
YESTERDAY 0 1 -1 1
MONTH TO DATE 37 23 14 20
SINCE SEP 1 37 23 14 20
SINCE JAN 1 310 256 54 372
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 500 PM
LOWEST 65 100 PM
AVERAGE 79
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 93 1967
MINIMUM TEMPERATURE (F) 54 42 1952
SUNRISE AND SUNSET
SEPTEMBER 15 2024.....SUNRISE 647 AM PDT SUNSET 720 PM PDT
SEPTEMBER 16 2024.....SUNRISE 649 AM PDT SUNSET 718 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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