CDUS46 KMTR 120827 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1227 AM PST FRI DEC 12 2025 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 11 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1927 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 54 4:24 PM 74 1958 58 -4 58 MINIMUM 45 1:24 AM 26 1972 45 0 44 AVERAGE 50 52 -2 51 PRECIPITATION (IN) YESTERDAY 0.00 3.43 2014 0.13 -0.13 0.03 MONTH TO DATE 0.00 1.39 -1.39 0.03 SINCE OCT 1 4.46 4.22 0.24 4.08 SINCE JAN 1 12.08 16.89 -4.81 18.98 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE DEC 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 15 13 2 14 MONTH TO DATE 159 139 20 103 SINCE DEC 1 159 139 20 103 SINCE JUL 1 510 647 -137 644 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 150 201 -51 184 ................................................................... WIND (MPH) RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NE (50) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (20) HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION E (80) AVERAGE WIND SPEED 5.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 93 2:00 AM LOWEST 77 1:00 PM AVERAGE 85 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 58 75 1958MINIMUM TEMPERATURE (F) 45 29 1972 SUNRISE AND SUNSET DECEMBER 12 2025......SUNRISE 7:15 AM PST SUNSET 4:51 PM PST DECEMBER 13 2025......SUNRISE 7:16 AM PST SUNSET 4:52 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$