CDUS46 KMTR 210826 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 126 AM PDT MON SEP 21 2026 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2026... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1927 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 64 4:29 PM 93 1983 75 -11 72 1990 2015 MINIMUM 57 8:08 AM 48 1947 56 1 62 1954 1965 AVERAGE 61 65 -4 67 PRECIPITATION (IN) YESTERDAY 0.00 0.08 2005 0.01 -0.01 0.00 MONTH TO DATE 0.01 0.03 -0.02 0.04 SINCE OCT 1 19.63 19.60 0.03 16.15 SINCE JAN 1 10.78 12.63 -1.85 7.59 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE SEP 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 4 2 2 0 MONTH TO DATE 10 24 -14 2 SINCE SEP 1 10 24 -14 2 SINCE JUL 1 84 126 -42 92 COOLING YESTERDAY 0 2 -2 2 MONTH TO DATE 50 40 10 43 SINCE SEP 1 50 40 10 43 SINCE JAN 1 161 150 11 93 ................................................................... WIND (MPH) RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION W (260) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (260) AVERAGE WIND SPEED 10.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 89 12:00 AM LOWEST 70 2:00 PM AVERAGE 80 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 75 95 2003 MINIMUM TEMPERATURE (F) 56 45 1955 SUNRISE AND SUNSET SEPTEMBER 21 2026.....SUNRISE 6:57 AM PDT SUNSET 7:08 PM PDT SEPTEMBER 22 2026.....SUNRISE 6:57 AM PDT SUNSET 7:06 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$