631 CDUS46 KMTR 310835 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1234 AM PST SAT DEC 31 2016 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 30 2016... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1998 TO 2016 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 60 204 PM 63 2013 54 6 48 MINIMUM 31 617 AM 26 2015 36 -5 26 AVERAGE 46 45 1 37 PRECIPITATION (IN) YESTERDAY 0.00 0.02 MONTH TO DATE 4.20 2.78 SINCE OCT 1 8.95 4.19 SINCE JAN 1 23.62 8.29 DEGREE DAYS HEATING YESTERDAY 19 28 MONTH TO DATE 525 551 SINCE DEC 1 525 551 SINCE JUL 1 1029 1092 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 186 378 .................................................................. WIND (MPH) RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SW (220) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (200) AVERAGE WIND SPEED 5.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 92 1200 AM LOWEST 51 300 PM AVERAGE 72 .......................................................... 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 2016......SUNRISE 726 AM PST SUNSET 459 PM PST JANUARY 1 2017.......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. $$