083 CDUS46 KMTR 040838 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 138 AM PDT SUN MAY 04 2025 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 3 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 60 2:59 PM 87 2017 67 -7 69 MINIMUM 50 11:59 PM 39 1950 50 0 51 AVERAGE 55 59 -4 60 PRECIPITATION (IN) YESTERDAY T 0.44 1951 0.02 -0.02 0.00 MONTH TO DATE 0.01 0.06 -0.05 0.00 SINCE OCT 1 15.97 18.97 -3.00 19.18 SINCE JAN 1 7.41 12.00 -4.59 13.85 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE MAR 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 10 7 3 5 MONTH TO DATE 26 21 5 14 SINCE MAR 1 488 551 -63 503 SINCE JUL 1 2021 2230 -209 1644 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 24 RESULTANT WIND DIRECTION W (280) HIGHEST WIND SPEED 38 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION W (270) AVERAGE WIND SPEED 18.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 89 3:00 AM LOWEST 57 2:00 PM AVERAGE 73 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 67 84 2011 2013 MINIMUM TEMPERATURE (F) 51 40 1950 1952 SUNRISE AND SUNSET MAY 4 2025...........SUNRISE 6:10 AM PDT SUNSET 8:03 PM PDT MAY 5 2025...........SUNRISE 6:09 AM PDT SUNSET 8:04 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$