Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KSEW 150845
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
145 AM PDT FRI AUG 15 2025
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 14 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 75 429 PM 95 2010 78 -3 77
MINIMUM 58 829 AM 44 1955 58 0 60
AVERAGE 67 68 -1 69
PRECIPITATION (IN)
YESTERDAY 0.22 1.60 1968 0.03 0.19 0.00
MONTH TO DATE 0.38 0.34 0.04 0.00
SINCE OCT 1 28.15 37.10 -8.95 33.65
SINCE JAN 1 14.75 21.16 -6.41 16.50
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 2.3 0.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0.0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 2 7 -5 2
SINCE JUN 1 117 156 -39 141
SINCE JUL 1 23 38 -15 9
COOLING
YESTERDAY 2 3 -1 4
MONTH TO DATE 55 55 0 57
SINCE JUN 1 216 180 36 240
SINCE JAN 1 219 190 29 247
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 8.8
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1000 PM
LOWEST 41 400 PM
AVERAGE 69
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 2010
MINIMUM TEMPERATURE (F) 57 47 1955
SUNRISE AND SUNSET
AUGUST 15 2025........SUNRISE 606 AM PDT SUNSET 820 PM PDT
AUGUST 16 2025........SUNRISE 607 AM PDT SUNSET 819 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$