889 CDUS46 KMTR 110828 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 128 AM PDT FRI SEP 11 2015 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 10 2015... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1927 TO 2015 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 83 319 PM 94 1979 74 9 82 MINIMUM 57 509 AM 49 1947 56 1 56 AVERAGE 70 65 5 69 PRECIPITATION (IN) YESTERDAY 0.00 0.00 2007 0.00 0.00 0.00 MONTH TO DATE 0.00 0.03 -0.03 0.00 SINCE OCT 1 16.59 20.51 -3.92 8.57 SINCE JAN 1 3.63 13.15 -9.52 7.31 SNOWFALL (IN) YESTERDAY 0.0 0.0 MONTH TO DATE 0.0 SINCE SEP 1 0.0 SINCE JUL 1 0.0 DEGREE DAYS HEATING YESTERDAY 0 2 -2 0 MONTH TO DATE 3 20 -17 3 SINCE SEP 1 3 20 -17 3 SINCE JUL 1 8 133 -125 23 COOLING YESTERDAY 5 2 3 4 MONTH TO DATE 49 20 29 23 SINCE SEP 1 49 20 29 23 SINCE JAN 1 243 117 126 276 .................................................................. WIND (MPH) RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NW (300) HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 10.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 86 400 AM LOWEST 30 400 PM AVERAGE 58 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 74 98 1979 MINIMUM TEMPERATURE (F) 56 49 1951 SUNRISE AND SUNSET SEPTEMBER 11 2015.....SUNRISE 648 AM PDT SUNSET 724 PM PDT SEPTEMBER 12 2015.....SUNRISE 649 AM PDT SUNSET 722 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$