CDUS46 KSEW 090828 CLISEA CLIMATE REPORT NATIONAL WEATHER SERVICE SEATTLE 128 AM PDT FRI MAY 09 2025 ................................... ...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 8 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 63 451 PM 84 1969 65 -2 64 1987 MINIMUM 43 507 AM 36 1999 47 -4 42 AVERAGE 53 56 -3 53 PRECIPITATION (IN) YESTERDAY 0.00 0.54 2014 0.06 -0.06 0.00 MONTH TO DATE T 0.55 -0.55 0.28 SINCE OCT 1 26.51 33.38 -6.87 31.04 SINCE JAN 1 13.11 17.44 -4.33 13.89 SNOWFALL (IN) YESTERDAY 0.0 T 1953 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 12 9 3 12 MONTH TO DATE 69 79 -10 106 SINCE MAR 1 996 1048 -52 1075 SINCE JUL 1 4153 4095 58 3986 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE MAR 1 0 1 -1 0 SINCE JAN 1 0 1 -1 0 ................................................................... WIND (MPH) RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION N (10) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (310) AVERAGE WIND SPEED 7.8 SKY COVER AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 79 300 AM LOWEST 34 400 PM AVERAGE 57 .......................................................... THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 65 86 2020 MINIMUM TEMPERATURE (F) 48 38 1955 1985 1999 SUNRISE AND SUNSET MAY 9 2025...........SUNRISE 540 AM PDT SUNSET 832 PM PDT MAY 10 2025...........SUNRISE 538 AM PDT SUNSET 834 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$