371 CDUS46 KMTR 150837 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 137 AM PDT TUE APR 15 2025 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 14 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 67 12:06 PM 87 1984 66 1 61 MINIMUM 50 5:46 AM 39 1950 49 1 49 AVERAGE 59 57 2 55 PRECIPITATION (IN) YESTERDAY 0.00 0.70 1963 0.05 -0.05 0.05 MONTH TO DATE 0.33 0.83 -0.50 0.77 SINCE OCT 1 15.96 18.38 -2.42 19.18 SINCE JAN 1 7.40 11.41 -4.01 13.85 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE MAR 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 6 8 -2 10 MONTH TO DATE 104 115 -11 126 SINCE MAR 1 420 411 9 403 SINCE JUL 1 1953 2090 -137 1544 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 11 RESULTANT WIND DIRECTION NW (300) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 10.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 89 3:00 AM LOWEST 54 1:00 PM AVERAGE 72 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 66 83 1966 MINIMUM TEMPERATURE (F) 49 38 1955 1975 SUNRISE AND SUNSET APRIL 15 2025.........SUNRISE 6:34 AM PDT SUNSET 7:45 PM PDT APRIL 16 2025.........SUNRISE 6:33 AM PDT SUNSET 7:46 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$