000 CDUS46 KSEW 100831 CLISEA CLIMATE REPORT NATIONAL WEATHER SERVICE SEATTLE WA 130 AM PDT SUN MAY 10 2009 ................................... ...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 9 2009... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1945 TO 2009 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 64 522 PM 81 1987 63 1 61 MINIMUM 44 507 AM 38 1999 46 -2 42 AVERAGE 54 55 -1 52 PRECIPITATION (IN) YESTERDAY 0.00 0.74 2000 0.06 -0.06 0.00 MONTH TO DATE 2.17 0.58 1.59 0.09 SINCE OCT 1 29.39 30.94 -1.55 27.48 SINCE JAN 1 16.60 16.23 0.37 11.37 SNOWFALL (IN) YESTERDAY 0.0 T 1953 0.0 MONTH TO DATE 0.0 0.0 SINCE OCT 1 23.3 3.5 SINCE JUL 1 23.3 3.5 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 11 11 0 13 MONTH TO DATE 105 103 2 118 SINCE MAR 1 1284 1132 152 1309 SINCE JUL 1 4685 4459 226 4738 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 7 RESULTANT WIND DIRECTION N (10) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (10) AVERAGE WIND SPEED 7.8 SKY COVER AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 89 600 AM LOWEST 39 600 PM AVERAGE 64 .......................................................... THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 63 80 1993 MINIMUM TEMPERATURE (F) 46 37 1947 SUNRISE AND SUNSET MAY 10 2009...........SUNRISE 538 AM PDT SUNSET 833 PM PDT MAY 11 2009...........SUNRISE 537 AM PDT SUNSET 835 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$