CDUS46 KMTR 190031 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 531 PM PDT MON MAY 18 2026 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 18 2026... VALID TODAY AS OF 0500 PM LOCAL TIME. 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) TODAY MAXIMUM 80 2:04 PM 85 1978 68 12 66 MINIMUM 65 7:15 AM 42 1950 52 13 50 1974 AVERAGE 73 60 13 58 PRECIPITATION (IN) TODAY 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) TODAY MM 0.0 MONTH TO DATE T SINCE MAR 1 T SINCE JUL 1 T SNOW DEPTH MM DEGREE DAYS HEATING TODAY 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 TODAY 8 0 8 0 MONTH TO DATE 8 0 8 2 SINCE MAR 1 44 6 38 5 SINCE JAN 1 45 6 39 5 ................................................................... WIND (MPH) RESULTANT WIND SPEED 16 RESULTANT WIND DIRECTION N (360) HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NE (30) HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION N (360) AVERAGE WIND SPEED 18.2 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 45 3:00 AM LOWEST 20 2:00 PM AVERAGE 33 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROWNORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 69 86 1952 1978 1983 MINIMUM TEMPERATURE (F) 52 42 1950 SUNRISE AND SUNSET MAY 18 2026...........SUNRISE 5:58 AM PDT SUNSET 8:15 PM PDT MAY 19 2026...........SUNRISE 5:57 AM PDT SUNSET 8:16 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$