376 CDUS46 KMTR 080901 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 101 AM PST TUE DEC 08 2020 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 7 2020... CLIMATE NORMAL PERIOD: 1981 TO 2010 CLIMATE RECORD PERIOD: 1927 TO 2020 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 73R 3:37 PM 73 2020 58 15 66 MINIMUM 46 2:21 AM 33 1960 45 1 55 AVERAGE 60 52 8 61 PRECIPITATION (IN) YESTERDAY 0.00 1.86 1997 0.13 -0.13 0.49 MONTH TO DATE 0.00 0.78 -0.78 1.82 SINCE OCT 1 0.31 4.11 -3.80 3.11 SINCE JAN 1 4.47 17.40 -12.93 21.60 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE MM SINCE DEC 1 MM SINCE JUL 1 MM DEGREE DAYS HEATING YESTERDAY 5 14 -9 4 MONTH TO DATE 73 92 -19 55 SINCE DEC 1 73 92 -19 55 SINCE JUL 1 471 656 -185 424 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 399 164 235 384 ................................................................... WIND (MPH) RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION N (20) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (360) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (360) AVERAGE WIND SPEED 4.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 77 12:00 AM LOWEST 21 4:00 PM AVERAGE 49 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 57 69 1988 MINIMUM TEMPERATURE (F) 45 29 1978 SUNRISE AND SUNSET DECEMBER 8 2020......SUNRISE 7:12 AM PST SUNSET 4:51 PM PST DECEMBER 9 2020......SUNRISE 7:13 AM PST SUNSET 4:51 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$