520 CDUS46 KMTR 130834 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 134 AM PDT SUN SEP 13 2015 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 12 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 73 606 PM 100 1979 74 -1 75 MINIMUM 57 633 AM 47 1970 56 1 58 1946 AVERAGE 65 65 0 67 PRECIPITATION (IN) YESTERDAY 0.00 0.07 1963 0.01 -0.01 0.00 MONTH TO DATE 0.00 0.04 -0.04 0.00 SINCE OCT 1 16.59 20.52 -3.93 8.57 SINCE JAN 1 3.63 13.16 -9.53 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 24 -21 3 SINCE SEP 1 3 24 -21 3 SINCE JUL 1 8 137 -129 23 COOLING YESTERDAY 0 2 -2 2 MONTH TO DATE 51 24 27 29 SINCE SEP 1 51 24 27 29 SINCE JAN 1 245 121 124 282 .................................................................. WIND (MPH) RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION W (290) HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (320) AVERAGE WIND SPEED 11.0 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 1200 AM LOWEST 57 600 PM AVERAGE 75 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 74 101 1971 MINIMUM TEMPERATURE (F) 56 47 1947 SUNRISE AND SUNSET SEPTEMBER 13 2015.....SUNRISE 650 AM PDT SUNSET 721 PM PDT SEPTEMBER 14 2015.....SUNRISE 650 AM PDT SUNSET 719 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$