251 CDUS46 KMTR 210845 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 145 AM PDT WED SEP 21 2016 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2016... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1927 TO 2016 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 73 114 PM 93 2015 74 -1 93 1990 MINIMUM 58 1159 PM 48 1965 56 2 61 1954 1947 AVERAGE 66 65 1 77 PRECIPITATION (IN) YESTERDAY 0.00 0.08 2005 0.00 0.00 0.00 MONTH TO DATE 0.00 0.08 -0.08 T SINCE OCT 1 17.23 20.56 -3.33 16.59 SINCE JAN 1 12.44 13.20 -0.76 3.63 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 38 40 -2 9 SINCE SEP 1 38 40 -2 9 SINCE JUL 1 141 153 -12 14 COOLING YESTERDAY 1 1 0 12 MONTH TO DATE 28 35 -7 72 SINCE SEP 1 28 35 -7 72 SINCE JAN 1 93 132 -39 266 .................................................................. WIND (MPH) RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION NW (300) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 11.7 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 86 500 AM LOWEST 49 100 PM AVERAGE 68 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 74 95 2003 MINIMUM TEMPERATURE (F) 56 45 1955 SUNRISE AND SUNSET SEPTEMBER 21 2016.....SUNRISE 657 AM PDT SUNSET 707 PM PDT SEPTEMBER 22 2016.....SUNRISE 658 AM PDT SUNSET 705 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$