717 CDUS46 KMTR 150843 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 142 AM PDT TUE SEP 15 2015 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 14 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 68 143 PM 103 1971 74 -6 74 MINIMUM 58 254 AM 46 1947 56 2 59 AVERAGE 63 65 -2 67 PRECIPITATION (IN) YESTERDAY T R 0.00 2007 0.01 -0.01 0.00 MONTH TO DATE T 0.05 -0.05 0.00 SINCE OCT 1 16.59 20.53 -3.94 8.57 SINCE JAN 1 3.63 13.17 -9.54 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 2 2 0 0 MONTH TO DATE 5 28 -23 3 SINCE SEP 1 5 28 -23 3 SINCE JUL 1 10 141 -131 23 COOLING YESTERDAY 0 2 -2 2 MONTH TO DATE 52 28 24 34 SINCE SEP 1 52 28 24 34 SINCE JAN 1 246 125 121 287 .................................................................. WIND (MPH) RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION S (200) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (170) HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SE (150) AVERAGE WIND SPEED 10.2 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 87 100 AM LOWEST 73 800 AM AVERAGE 80 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 74 98 1971 MINIMUM TEMPERATURE (F) 56 48 1970 SUNRISE AND SUNSET SEPTEMBER 15 2015.....SUNRISE 651 AM PDT SUNSET 718 PM PDT SEPTEMBER 16 2015.....SUNRISE 652 AM PDT SUNSET 716 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$