778 CDUS46 KMTR 010828 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 128 AM PDT SUN JUN 01 2025 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 31 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 74 2:59 PM 91 2001 70 4 73 MINIMUM 54 5:10 AM 46 1962 53 1 55 AVERAGE 64 61 3 64 PRECIPITATION (IN) YESTERDAY 0.00 0.11 1947 0.01 -0.01 0.00 MONTH TO DATE 0.11 0.48 -0.37 0.95 SINCE OCT 1 16.11 19.39 -3.28 20.13 SINCE JAN 1 7.55 12.42 -4.87 14.80 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE MAR 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 1 4 -3 1 MONTH TO DATE 163 168 -5 133 SINCE MAR 1 717 698 19 622 SINCE JUL 1 2250 2377 -127 1763 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 3 14 -11 10 SINCE MAR 1 6 20 -14 11 SINCE JAN 1 6 20 -14 11 ................................................................... WIND (MPH) RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION NW (310) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 12.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 90 4:00 AM LOWEST 48 3:00 PM AVERAGE 69 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 70 91 1989 MINIMUM TEMPERATURE (F) 53 43 1954 SUNRISE AND SUNSET JUNE 1 2025..........SUNRISE 5:50 AM PDT SUNSET 8:26 PM PDT JUNE 2 2025..........SUNRISE 5:49 AM PDT SUNSET 8:26 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$