CDUS46 KMTR 190827 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 127 AM PDT TUE MAY 19 2026 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 18 2026... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1927 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 80 2:04 PM 85 1978 68 12 66 MINIMUM 56 11:21 PM 42 1950 52 4 50 1974 AVERAGE 68 60 8 58 PRECIPITATION (IN) YESTERDAY 0.00 1.23 1957 0.02 -0.02 0.00 MONTH TO DATE 0.11 0.32 -0.21 0.11 SINCE OCT 1 19.38 19.23 0.15 16.11 SINCE JAN 1 10.53 12.26 -1.73 7.55 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE MAR 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 0 5 -5 7 MONTH TO DATE 100 109 -9 98 SINCE MAR 1 373 639 -266 652 SINCE JUL 1 1721 2318 -597 2185 COOLING YESTERDAY 3 0 3 0 MONTH TO DATE 3 0 3 2 SINCE MAR 1 39 6 33 5 SINCE JAN 1 40 6 34 5 ................................................................... WIND (MPH) RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION N (340) HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NE (30) HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION N (360) AVERAGE WIND SPEED 16.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 64 11:00 PM LOWEST 20 2:00 PM AVERAGE 42 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 69 86 19521978 1983 MINIMUM TEMPERATURE (F) 52 42 1950 SUNRISE AND SUNSET MAY 19 2026...........SUNRISE 5:57 AM PDT SUNSET 8:16 PM PDT MAY 20 2026...........SUNRISE 5:56 AM PDT SUNSET 8:17 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$