103
CDUS46 KSEW 300826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT THU JUL 30 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 29 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 75 427 PM 103 2009 79 -4 85
MINIMUM 56 1159 PM 45 1954 58 -2 57
AVERAGE 66 68 -2 71
PRECIPITATION (IN)
YESTERDAY 0.00 0.17 1993 0.01 -0.01 0.00
MONTH TO DATE 0.42 0.56 -0.14 0.01
SINCE OCT 1 36.35 36.72 -0.37 27.77
SINCE JAN 1 19.57 20.78 -1.21 14.37
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 3.0 2.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 20 35 -15 21
SINCE JUN 1 115 153 -38 115
SINCE JUL 1 20 35 -15 21
COOLING
YESTERDAY 1 4 -3 6
MONTH TO DATE 80 88 -8 107
SINCE JUN 1 151 117 34 149
SINCE JAN 1 161 127 34 152
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WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NW (330)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 1200 AM
LOWEST 38 200 PM
AVERAGE 58
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 96 2009
MINIMUM TEMPERATURE (F) 58 48 1951
SUNRISE AND SUNSET
JULY 30 2026..........SUNRISE 545 AM PDT SUNSET 846 PM PDT
JULY 31 2026..........SUNRISE 546 AM PDT SUNSET 844 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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