Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KSEW 210116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT MON JUL 20 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 20 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 82 459 PM 100 1994 78 4 65
MINIMUM 60 400 AM 50 1953 57 3 51
1955
1962
AVERAGE 71 68 3 58
PRECIPITATION (IN)
TODAY 0.00 0.60 2012 0.02 -0.02 0.00
MONTH TO DATE 0.36 0.42 -0.06 T
SINCE OCT 1 36.29 36.58 -0.29 27.76
SINCE JAN 1 19.51 20.64 -1.13 14.36
SNOWFALL (IN)
TODAY 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
TODAY 0 1 -1 7
MONTH TO DATE 20 26 -6 16
SINCE JUN 1 115 144 -29 110
SINCE JUL 1 20 26 -6 16
COOLING
TODAY 6 4 2 0
MONTH TO DATE 35 52 -17 87
SINCE JUN 1 106 81 25 129
SINCE JAN 1 116 91 25 132
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (360)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 7.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72 500 AM
LOWEST 39 400 PM
AVERAGE 56
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 97 2006
MINIMUM TEMPERATURE (F) 58 48 1951
SUNRISE AND SUNSET
JULY 20 2026..........SUNRISE 533 AM PDT SUNSET 857 PM PDT
JULY 21 2026..........SUNRISE 534 AM PDT SUNSET 856 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$