CDUS46 KMTR 210838 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 138 AM PDT TUE APR 21 2026 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 20 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 66 9:19 AM 91 2009 66 0 63 MINIMUM 54 11:59 PM 38 1967 49 5 49 AVERAGE 60 58 2 56 PRECIPITATION (IN) YESTERDAY 0.55 0.69 2001 0.04 0.51 0.00 MONTH TO DATE 2.74 1.09 1.65 0.33 SINCE OCT 1 18.89 18.64 0.25 15.96 SINCE JAN 1 10.04 11.67 -1.63 7.40 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE T SINCE MAR 1 T SINCE JUL 1 T DEGREE DAYS HEATING YESTERDAY 5 8 -3 9 MONTH TO DATE 105 163 -58 151 SINCE MAR 1 207 459 -252 467 SINCE JUL 1 1555 2138 -583 2000 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 3 0 3 0 SINCE MAR 1 36 1 35 3 SINCE JAN 1 37 1 36 3 ................................................................... WIND (MPH) RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (170) HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION S (190) HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION SW (210) AVERAGE WIND SPEED 9.5 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 93 7:00 PM LOWEST 53 1:00 AM AVERAGE 73 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 66 86 2009MINIMUM TEMPERATURE (F) 49 39 1968 SUNRISE AND SUNSET APRIL 21 2026.........SUNRISE 6:26 AM PDT SUNSET 7:51 PM PDT APRIL 22 2026.........SUNRISE 6:25 AM PDT SUNSET 7:52 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$