624 CDUS46 KMTR 130827 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1227 AM PST THU DEC 13 2018 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 12 2018... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1998 TO 2018 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 64R 332 PM 63 2017 56 8 63 MINIMUM 38 1135 PM 26 2013 36 2 28 AVERAGE 51 46 5 46 PRECIPITATION (IN) YESTERDAY 0.00 0.00 MONTH TO DATE 0.64 0.01 SINCE OCT 1 1.90 2.98 SINCE JAN 1 14.67 31.16 DEGREE DAYS HEATING YESTERDAY 14 19 MONTH TO DATE 196 189 SINCE DEC 1 196 189 SINCE JUL 1 763 717 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 182 530 .................................................................. WIND (MPH) RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (180) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SW (220) AVERAGE WIND SPEED 3.0 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 96 100 AM LOWEST 48 400 PM AVERAGE 72 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 56 61 2004 MINIMUM TEMPERATURE (F) 36 24 2013 2007 SUNRISE AND SUNSET DECEMBER 13 2018......SUNRISE 717 AM PST SUNSET 450 PM PST DECEMBER 14 2018......SUNRISE 718 AM PST SUNSET 450 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$