398 CDUS46 KSEW 030828 CLISEA CLIMATE REPORT NATIONAL WEATHER SERVICE SEATTLE WA 127 AM PDT TUE SEP 3 2019 ................................... ...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 2 2019... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1945 TO 2019 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 79 427 PM 98 1988 74 5 76 MINIMUM 60 445 AM 41 1960 55 5 52 AVERAGE 70 64 6 64 PRECIPITATION (IN) YESTERDAY 0.00 0.71 1979 0.03 -0.03 0.00 MONTH TO DATE 0.00 0.07 -0.07 0.00 SINCE OCT 1 32.50 36.06 -3.56 38.27 SINCE JAN 1 17.22 20.66 -3.44 19.41 DEGREE DAYS HEATING YESTERDAY 0 2 -2 1 MONTH TO DATE 0 4 -4 1 SINCE SEP 1 0 4 -4 1 SINCE JUL 1 13 89 -76 25 COOLING YESTERDAY 5 1 4 0 MONTH TO DATE 11 2 9 0 SINCE SEP 1 11 2 9 0 SINCE JAN 1 302 170 132 385 .................................................................. WIND (MPH) RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (350) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (350) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (330) AVERAGE WIND SPEED 7.0 SKY COVER AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 84 400 AM LOWEST 45 400 PM AVERAGE 65 .......................................................... THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 74 92 1988 MINIMUM TEMPERATURE (F) 54 45 1956 SUNRISE AND SUNSET SEPTEMBER 3 2019.....SUNRISE 630 AM PDT SUNSET 746 PM PDT SEPTEMBER 4 2019.....SUNRISE 632 AM PDT SUNSET 744 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$