267 CDUS46 KMTR 210826 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 126 AM PDT MON APR 21 2025 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 20 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 63 1:16 PM 91 2009 66 -3 67 MINIMUM 49 11:57 PM 38 1967 49 0 51 AVERAGE 56 58 -2 59 PRECIPITATION (IN) YESTERDAY 0.00 0.69 2001 0.04 -0.04 0.00 MONTH TO DATE 0.33 1.09 -0.76 0.77 SINCE OCT 1 15.96 18.64 -2.68 19.18 SINCE JAN 1 7.40 11.67 -4.27 13.85 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE MAR 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 9 8 1 6 MONTH TO DATE 151 163 -12 154 SINCE MAR 1 467 459 8 431 SINCE JUL 1 2000 2138 -138 1572 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE MAR 1 3 1 2 1 SINCE JAN 1 3 1 2 1 ................................................................... WIND (MPH) RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION NW (300) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 10.5 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 93 10:00 PM LOWEST 60 1:00 PM AVERAGE 77 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 66 86 2009 MINIMUM TEMPERATURE (F) 49 39 1968 SUNRISE AND SUNSET APRIL 21 2025.........SUNRISE 6:26 AM PDT SUNSET 7:51 PM PDT APRIL 22 2025.........SUNRISE 6:25 AM PDT SUNSET 7:52 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$