350 CDUS46 KMTR 010833 CLISFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 133 AM PDT FRI MAY 01 2020 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 30 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 67 12:04 PM 90 1996 66 1 65 2014 MINIMUM 52 11:59 PM 41 1946 50 2 52 AVERAGE 60 58 2 59 PRECIPITATION (IN) YESTERDAY 0.00 0.71 1983 0.03 -0.03 0.00 MONTH TO DATE 1.36 1.29 0.07 0.20 SINCE OCT 1 8.87 19.86 -10.99 21.31 SINCE JAN 1 3.86 12.50 -8.64 16.43 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 5 7 -2 6 MONTH TO DATE 207 247 -40 184 SINCE MAR 1 512 561 -49 499 SINCE JUL 1 1893 2367 -474 2119 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 5 -5 9 SINCE MAR 1 0 6 -6 9 SINCE JAN 1 0 6 -6 9 ................................................................... WIND (MPH) RESULTANT WIND SPEED 19 RESULTANT WIND DIRECTION W (270) HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION W (270) HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (270) AVERAGE WIND SPEED 19.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 93 5:00 AM LOWEST 54 12:00 PM AVERAGE 74 .......................................................... THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 66 89 1947 MINIMUM TEMPERATURE (F) 50 44 1983 1988 2008 SUNRISE AND SUNSET MAY 1 2020...........SUNRISE 6:13 AM PDT SUNSET 8:00 PM PDT MAY 2 2020...........SUNRISE 6:12 AM PDT SUNSET 8:01 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$