CDUS46 KSEW 280826 CLISEA CLIMATE REPORT NATIONAL WEATHER SERVICE SEATTLE 126 AM PDT MON APR 28 2025 ................................... ...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 27 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 58 518 PM 81 1987 62 -4 52 MINIMUM 44 405 AM 31 1948 45 -1 47 AVERAGE 51 54 -3 50 PRECIPITATION (IN) YESTERDAY 0.00 0.70 1952 0.09 -0.09 0.09 MONTH TO DATE 2.36 2.94 -0.58 0.60 SINCE OCT 1 26.32 32.59 -6.27 30.47 SINCE JAN 1 12.92 16.65 -3.73 13.32 SNOWFALL (IN) YESTERDAY 0.0 T 1970 0.0 MONTH TO DATE 0.0 0.0 SINCE OCT 1 2.3 0.3 SINCE JUL 1 2.3 0.3 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 14 12 2 15 MONTH TO DATE 342 379 -37 369 SINCE MAR 1 888 936 -48 918 SINCE JUL 1 4045 3983 62 3829 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE MAR 1 0 0 0 0 SINCE JAN 1 0 0 0 0 ................................................................... WIND (MPH) RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION S (200) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (160) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (200) AVERAGE WIND SPEED 8.2 SKY COVER AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 82 200 AM LOWEST 57 500 PM AVERAGE 70 .......................................................... THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 62 80 2023 MINIMUM TEMPERATURE (F) 45 31 1955 SUNRISE AND SUNSET APRIL 28 2025.........SUNRISE 557 AM PDT SUNSET 817 PM PDT APRIL 29 2025.........SUNRISE 555 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. $$