CDUS46 KMTR 280831 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 131 AM PDT MON APR 28 2025 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 27 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 57 2:59 PM 87 2004 67 -10 65 MINIMUM 50 11:59 PM 36 1955 50 0 51 AVERAGE 54 58 -4 58 PRECIPITATION (IN) YESTERDAY T 0.89 1953 0.03 -0.03 0.00 MONTH TO DATE 0.37 1.30 -0.93 0.77 SINCE OCT 1 16.00 18.85 -2.85 19.18 SINCE JAN 1 7.44 11.88 -4.44 13.85 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE MAR 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 11 7 4 7 MONTH TO DATE 216 213 3 191 SINCE MAR 1 532 509 23 468 SINCE JUL 1 2065 2188 -123 1609 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 9 RESULTANT WIND DIRECTION W (270) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (270) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (260) AVERAGE WIND SPEED 9.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 92 12:00 AM LOWEST 69 3:00 PM AVERAGE 81 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 67 89 1981 MINIMUM TEMPERATURE (F) 50 39 1967 SUNRISE AND SUNSET APRIL 28 2025.........SUNRISE 6:17 AM PDT SUNSET 7:57 PM PDT APRIL 29 2025.........SUNRISE 6:16 AM PDT SUNSET 7:58 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$