211 CDUS46 KMTR 170827 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1227 AM PST SAT DEC 17 2016 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 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 56 244 PM 69 2011 55 1 55 MINIMUM 38 1152 PM 28 2015 36 2 28 2006 AVERAGE 47 46 1 42 PRECIPITATION (IN) YESTERDAY 0.00 0.00 MONTH TO DATE 3.54 0.64 SINCE OCT 1 8.29 2.05 SINCE JAN 1 22.96 6.15 DEGREE DAYS HEATING YESTERDAY 18 23 MONTH TO DATE 237 258 SINCE DEC 1 237 258 SINCE JUL 1 741 799 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 186 378 .................................................................. WIND (MPH) RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION W (290) HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (310) AVERAGE WIND SPEED 13.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 83 1200 AM LOWEST 35 300 PM AVERAGE 59 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 55 66 2000 MINIMUM TEMPERATURE (F) 36 24 2008 SUNRISE AND SUNSET DECEMBER 17 2016......SUNRISE 720 AM PST SUNSET 451 PM PST DECEMBER 18 2016......SUNRISE 721 AM PST SUNSET 451 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$