523 CDUS46 KMTR 190816 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 116 AM PDT THU MAR 19 2020 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MARCH 18 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 57 MM 77 2004 62 -5 72 MINIMUM 47 MM 37 1973 48 -1 50 AVERAGE 52 55 -3 61 PRECIPITATION (IN) YESTERDAY 0.01 0.72 1989 0.09 -0.08 0.00 MONTH TO DATE 0.89 1.95 -1.06 2.92 SINCE OCT 1 7.08 17.56 -10.48 19.56 SINCE JAN 1 2.07 10.20 -8.13 14.68 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE 0.0 SINCE MAR 1 0.0 SINCE JUL 1 0.0 DEGREE DAYS HEATING YESTERDAY 13 10 3 4 MONTH TO DATE 165 187 -22 201 SINCE MAR 1 165 187 -22 201 SINCE JUL 1 1546 1993 -447 1821 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE MAR 1 0 0 0 0 SINCE JAN 1 0 0 0 0 ................................................................... WIND (MPH) RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (220) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED 7.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 80 2:00 AM LOWEST 53 3:00 PM AVERAGE 67 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 62 78 2010 MINIMUM TEMPERATURE (F) 48 39 1955 1965 SUNRISE AND SUNSET MARCH 19 2020.........SUNRISE 7:14 AM PDT SUNSET 7:21 PM PDT MARCH 20 2020.........SUNRISE 7:12 AM PDT SUNSET 7:22 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$