135 CDUS46 KMTR 310826 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1226 AM PST TUE DEC 31 2019 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 30 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 58 328 PM 63 2017 54 4 58 2013 MINIMUM 35 1153 PM 26 2015 36 -1 30 AVERAGE 47 45 2 44 PRECIPITATION (IN) YESTERDAY 0.00 0.00 MONTH TO DATE 4.93 1.94 SINCE OCT 1 5.74 3.20 SINCE JAN 1 28.40 15.97 DEGREE DAYS HEATING YESTERDAY 18 21 MONTH TO DATE 456 467 SINCE DEC 1 456 467 SINCE JUL 1 1056 1034 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 346 182 .................................................................. WIND (MPH) RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (140) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (40) HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (30) AVERAGE WIND SPEED 3.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 700 AM LOWEST 67 300 PM AVERAGE 84 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 54 62 2011 MINIMUM TEMPERATURE (F) 36 24 2015 SUNRISE AND SUNSET DECEMBER 31 2019......SUNRISE 726 AM PST SUNSET 459 PM PST JANUARY 1 2020.......SUNRISE 726 AM PST SUNSET 500 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$