253 CDUS46 KMTR 050838 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 138 AM PDT MON MAY 05 2025 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 4 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 65 4:06 PM 84 2011 67 -2 57 2013 MINIMUM 49 5:37 AM 40 1950 51 -2 50 1952 AVERAGE 57 59 -2 54 PRECIPITATION (IN) YESTERDAY 0.00 0.95 2024 0.02 -0.02 0.95 MONTH TO DATE 0.01 0.08 -0.07 0.95 SINCE OCT 1 15.97 18.99 -3.02 20.13 SINCE JAN 1 7.41 12.02 -4.61 14.80 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE MAR 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 8 6 2 11 MONTH TO DATE 34 27 7 25 SINCE MAR 1 496 557 -61 514 SINCE JUL 1 2029 2236 -207 1655 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE MAR 1 3 6 -3 1 SINCE JAN 1 3 6 -3 1 ................................................................... WIND (MPH) RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION W (290) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 13.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 83 1:00 AM LOWEST 48 4:00 PM AVERAGE 66 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 67 91 1987 MINIMUM TEMPERATURE (F) 51 41 1965 SUNRISE AND SUNSET MAY 5 2025...........SUNRISE 6:09 AM PDT SUNSET 8:04 PM PDT MAY 6 2025...........SUNRISE 6:08 AM PDT SUNSET 8:05 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$