835 CDUS46 KMTR 090831 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 131 AM PDT SUN AUG 9 2015 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 8 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 71 118 PM 89 2002 72 -1 74 MINIMUM 61 645 AM 47 1946 56 5 60 AVERAGE 66 64 2 67 PRECIPITATION (IN) YESTERDAY 0.00 0.01 1962 0.00 0.00 0.00 MONTH TO DATE T 0.01 -0.01 T SINCE OCT 1 16.59 20.45 -3.86 8.57 SINCE JAN 1 3.63 13.09 -9.46 7.31 SNOWFALL (IN) YESTERDAY 0.0 0.0 MONTH TO DATE 0.0 SINCE JUN 1 0.0 SINCE JUL 1 0.0 DEGREE DAYS HEATING YESTERDAY 0 2 -2 0 MONTH TO DATE 0 16 -16 1 SINCE JUN 1 80 186 -106 69 SINCE JUL 1 5 81 -76 20 COOLING YESTERDAY 1 1 0 2 MONTH TO DATE 15 8 7 13 SINCE JUN 1 95 53 42 131 SINCE JAN 1 108 72 36 194 .................................................................. WIND (MPH) RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION W (250) HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (270) AVERAGE WIND SPEED 11.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 84 200 AM LOWEST 57 100 PM AVERAGE 71 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 72 95 1970 MINIMUM TEMPERATURE (F) 56 48 1954 SUNRISE AND SUNSET AUGUST 9 2015........SUNRISE 620 AM PDT SUNSET 809 PM PDT AUGUST 10 2015........SUNRISE 621 AM PDT SUNSET 808 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$