CDUS46 KSEW 110220 CLISEA CLIMATE REPORT NATIONAL WEATHER SERVICE SEATTLE 620 PM PST WED DEC 10 2025 ................................... ...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 10 2025... VALID TODAY AS OF 0500 PM LOCAL TIME. 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) TODAY MAXIMUM 57 446 PM 66 2014 47 10 44 MINIMUM 53 1230 AM 16 2009 37 16 32 AVERAGE 55 42 13 38 PRECIPITATION (IN) TODAY 1.22 1.55 1977 0.19 1.03 0.00 MONTH TO DATE 3.60 1.89 1.71 0.59 SINCE OCT 1 13.01 12.11 0.90 8.49 SINCE JAN 1 29.28 35.51 -6.23 27.27 SNOWFALL (IN) TODAY 0.0 2.8 1992 0.0 MONTH TO DATE 0.0 0.0 SINCE OCT 1 0.0 0.0 SINCE JUL 1 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING TODAY 10 23 -13 27 MONTH TO DATE 167 223 -56 247 SINCE DEC 1 167 223 -56 247 SINCE JUL 1 1081 1284 -203 1288 COOLING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 328 263 65 315 ................................................................... WIND (MPH) RESULTANT WIND SPEED 18 RESULTANT WIND DIRECTION S (190) HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION SW (220) AVERAGE WIND SPEED 18.5 SKY COVER AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 97 100 PM LOWEST 89 200 PM AVERAGE 93 .......................................................... THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 47 58 2014 MINIMUM TEMPERATURE (F) 37 21 2009 SUNRISE AND SUNSET DECEMBER 10 2025......SUNRISE 746 AM PST SUNSET 418 PM PST DECEMBER 11 2025......SUNRISE 747 AM PST SUNSET 418 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$