961 CDUS46 KMTR 040829 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 129 AM PDT WED AUG 04 2021 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 3 2021... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1927 TO 2021 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 68 5:11 AM 91 1998 73 -5 75 MINIMUM 55 3:59 AM 45 1954 56 -1 58 AVERAGE 62 64 -2 67 PRECIPITATION (IN) YESTERDAY 0.00 0.01 1953 0.00 0.00 0.00 MONTH TO DATE 0.00 0.00 0.00 0.00 SINCE OCT 1 7.25 19.53 -12.28 9.12 SINCE JAN 1 5.55 12.56 -7.01 4.11 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE MM SINCE JUN 1 MM SINCE JUL 1 MM DEGREE DAYS HEATING YESTERDAY 3 2 1 0 MONTH TO DATE 5 6 -1 5 SINCE JUN 1 64 161 -97 87 SINCE JUL 1 34 64 -30 45 COOLING YESTERDAY 0 1 -1 2 MONTH TO DATE 1 3 -2 2 SINCE JUN 1 73 52 21 49 SINCE JAN 1 85 72 13 72 ................................................................... WIND (MPH) RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION NW (300) HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 12.7 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 12:00 AM LOWEST 61 2:00 PM AVERAGE 77 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 73 87 1998 MINIMUM TEMPERATURE (F) 56 50 1945 1949 1966 SUNRISE AND SUNSET AUGUST 4 2021........SUNRISE 6:16 AM PDT SUNSET 8:14 PM PDT AUGUST 5 2021........SUNRISE 6:17 AM PDT SUNSET 8:13 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$