091 CDUS46 KMTR 090828 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1228 AM PST MON DEC 9 2019 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 8 2019... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1998 TO 2019 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 62 339 PM 65 2014 57 5 62 MINIMUM 42 1058 PM 19 2009 36 6 36 AVERAGE 52 46 6 49 PRECIPITATION (IN) YESTERDAY 0.03 0.00 MONTH TO DATE 2.75 0.63 SINCE OCT 1 3.56 1.89 SINCE JAN 1 26.22 14.66 DEGREE DAYS HEATING YESTERDAY 13 16 MONTH TO DATE 82 128 SINCE DEC 1 82 128 SINCE JUL 1 682 695 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 346 182 .................................................................. WIND (MPH) RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SW (210) HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (20) AVERAGE WIND SPEED 3.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG FOG W/VISIBILITY <= 1/4 MILE RELATIVE HUMIDITY (PERCENT) HIGHEST 100 700 PM LOWEST 72 100 PM AVERAGE 86 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 56 70 2012 MINIMUM TEMPERATURE (F) 36 19 2013 SUNRISE AND SUNSET DECEMBER 9 2019......SUNRISE 714 AM PST SUNSET 449 PM PST DECEMBER 10 2019......SUNRISE 715 AM PST SUNSET 449 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$