315 CDUS46 KMTR 190843 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 143 AM PDT WED AUG 19 2015 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 18 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 76 302 PM 88 1934 73 3 70 MINIMUM 59 550 AM 48 1957 56 3 60 AVERAGE 68 65 3 65 PRECIPITATION (IN) YESTERDAY 0.00 0.35 1976 0.00 0.00 0.00 MONTH TO DATE T 0.02 -0.02 T SINCE OCT 1 16.59 20.46 -3.87 8.57 SINCE JAN 1 3.63 13.10 -9.47 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 1 -1 0 MONTH TO DATE 0 29 -29 1 SINCE JUN 1 80 199 -119 69 SINCE JUL 1 5 94 -89 20 COOLING YESTERDAY 3 1 2 0 MONTH TO DATE 58 18 40 36 SINCE JUN 1 138 63 75 154 SINCE JAN 1 151 82 69 217 .................................................................. WIND (MPH) RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (290) HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 8.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 87 100 AM LOWEST 54 200 PM AVERAGE 71 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 73 89 1964 MINIMUM TEMPERATURE (F) 56 49 1955 1894 SUNRISE AND SUNSET AUGUST 19 2015........SUNRISE 629 AM PDT SUNSET 757 PM PDT AUGUST 20 2015........SUNRISE 629 AM PDT SUNSET 756 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$