653 CDUS46 KMTR 180837 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 137 AM PDT THU MAR 18 2021 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MARCH 17 2021... CLIMATE NORMAL PERIOD: 1981 TO 2010 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 56 3:13 PM 82 2004 62 -6 56 MINIMUM 43 6:04 AM 36 1966 48 -5 44 AVERAGE 50 55 -5 50 PRECIPITATION (IN) YESTERDAY 0.00 0.68 1991 0.09 -0.09 0.01 MONTH TO DATE 1.18 1.86 -0.68 0.88 SINCE OCT 1 7.05 17.47 -10.42 7.07 SINCE JAN 1 5.35 10.11 -4.76 2.06 SNOWFALL (IN) YESTERDAY MM 0.0 MONTH TO DATE MM SINCE MAR 1 MM SINCE JUL 1 MM DEGREE DAYS HEATING YESTERDAY 15 10 5 15 MONTH TO DATE 204 177 27 152 SINCE MAR 1 204 177 27 152 SINCE JUL 1 1583 1983 -400 1533 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 3 RESULTANT WIND DIRECTION S (190) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (220) AVERAGE WIND SPEED 5.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 76 4:00 AM LOWEST 57 4:00 PM AVERAGE 67 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 62 77 2004 MINIMUM TEMPERATURE (F) 48 37 1973 SUNRISE AND SUNSET MARCH 18 2021.........SUNRISE 7:15 AM PDT SUNSET 7:20 PM PDT MARCH 19 2021.........SUNRISE 7:14 AM PDT SUNSET 7:21 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$