074 CDUS46 KMTR 160836 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1236 AM PST WED DEC 16 2015 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 15 2015... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1998 TO 2015 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 59 114 PM 64 1998 55 4 51 MINIMUM 31 138 AM 26 2005 36 -5 48 AVERAGE 45 46 -1 50 PRECIPITATION (IN) YESTERDAY 0.00 1.17 MONTH TO DATE 0.64 8.34 SINCE OCT 1 2.05 10.59 SINCE JAN 1 6.15 19.24 DEGREE DAYS HEATING YESTERDAY 20 15 MONTH TO DATE 235 154 SINCE DEC 1 235 154 SINCE JUL 1 776 627 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 378 267 .................................................................. WIND (MPH) RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (10) HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION N (350) HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION N (360) AVERAGE WIND SPEED 8.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 92 300 AM LOWEST 25 300 PM AVERAGE 59 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 55 69 2011 MINIMUM TEMPERATURE (F) 36 28 2006 SUNRISE AND SUNSET DECEMBER 16 2015......SUNRISE 719 AM PST SUNSET 450 PM PST DECEMBER 17 2015......SUNRISE 720 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. $$