Climatological Report (Daily)
Issued by NWS
Issued by NWS
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073
CDUS46 KSEW 210119
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
619 PM PDT FRI SEP 20 2024
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2024...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 64 308 PM 88 1974 71 -7 64
MINIMUM 53 741 AM 40 1949 53 0 51
AVERAGE 59 62 -3 58
PRECIPITATION (IN)
TODAY 0.02 1.05 1972 0.05 -0.03 0.41
MONTH TO DATE 0.41 0.96 -0.55 0.70
SINCE OCT 1 35.51 38.69 -3.18 29.97
SINCE JAN 1 18.36 22.75 -4.39 15.08
SNOWFALL (IN)
TODAY MM 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
TODAY 6 4 2 7
MONTH TO DATE 55 51 4 37
SINCE SEP 1 55 51 4 37
SINCE JUL 1 93 106 -13 49
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 37 29 8 26
SINCE SEP 1 37 29 8 26
SINCE JAN 1 310 262 48 378
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 5.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 400 AM
LOWEST 56 300 PM
AVERAGE 76
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 88 1952
1974
MINIMUM TEMPERATURE (F) 53 39 1955
1960
SUNRISE AND SUNSET
SEPTEMBER 20 2024.....SUNRISE 654 AM PDT SUNSET 710 PM PDT
SEPTEMBER 21 2024.....SUNRISE 656 AM PDT SUNSET 708 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$