809
CDUS46 KSEW 120827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT THU SEP 12 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 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 67 354 PM 93 2013 73 -6 73
MINIMUM 53 140 AM 40 1952 55 -2 58
AVERAGE 60 64 -4 66
PRECIPITATION (IN)
YESTERDAY 0.24 0.58 1956 0.05 0.19 0.00
MONTH TO DATE 0.24 0.49 -0.25 0.13
SINCE OCT 1 35.34 38.22 -2.88 29.40
SINCE JAN 1 18.19 22.28 -4.09 14.51
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 5 2 3 0
MONTH TO DATE 9 22 -13 15
SINCE SEP 1 9 22 -13 15
SINCE JUL 1 45 77 -32 27
COOLING
YESTERDAY 0 1 -1 1
MONTH TO DATE 37 20 17 19
SINCE SEP 1 37 20 17 19
SINCE JAN 1 310 253 57 371
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 5.0
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 600 AM
LOWEST 66 300 PM
AVERAGE 83
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 85 1961
1975
MINIMUM TEMPERATURE (F) 54 44 1949
1962
SUNRISE AND SUNSET
SEPTEMBER 12 2024.....SUNRISE 643 AM PDT SUNSET 726 PM PDT
SEPTEMBER 13 2024.....SUNRISE 645 AM PDT SUNSET 724 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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