944 CDUS46 KMTR 200836 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 136 AM PDT MON OCT 20 2025 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR OCTOBER 19 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 70 2:33 PM 88 2023 72 -2 79 MINIMUM 55 6:19 AM 43 1949 53 2 54 AVERAGE 63 63 0 67 PRECIPITATION (IN) YESTERDAY 0.00 1.65 2004 0.02 -0.02 0.00 MONTH TO DATE 1.00 0.35 0.65 T SINCE OCT 1 1.00 0.35 0.65 T SINCE JAN 1 8.62 13.02 -4.40 14.90 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE SEP 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 2 3 -1 0 MONTH TO DATE 32 46 -14 29 SINCE SEP 1 35 92 -57 103 SINCE JUL 1 125 194 -69 233 COOLING YESTERDAY 0 1 -1 2 MONTH TO DATE 16 27 -11 86 SINCE SEP 1 94 83 11 110 SINCE JAN 1 144 193 -49 184 ................................................................... WIND (MPH) RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION NW (300) HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 10.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 97 5:00 AM LOWEST 55 1:00 PM AVERAGE 76 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 72 89 1991 MINIMUM TEMPERATURE (F) 53 37 1949 SUNRISE AND SUNSET OCTOBER 20 2025.......SUNRISE 7:23 AM PDT SUNSET 6:25 PM PDT OCTOBER 21 2025.......SUNRISE 7:24 AM PDT SUNSET 6:24 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$