861 CDUS46 KMTR 150859 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1259 AM PST TUE DEC 15 2015 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 14 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 57 254 PM 61 2006 56 1 52 MINIMUM 28 638 AM 24 2008 36 -8 43 AVERAGE 43 46 -3 48 PRECIPITATION (IN) YESTERDAY 0.00 0.10 MONTH TO DATE 0.64 7.17 SINCE OCT 1 2.05 9.42 SINCE JAN 1 6.15 18.07 DEGREE DAYS HEATING YESTERDAY 22 17 MONTH TO DATE 215 139 SINCE DEC 1 215 139 SINCE JUL 1 756 612 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 378 267 .................................................................. WIND (MPH) RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NW (320) HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (350) AVERAGE WIND SPEED 5.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 300 AM LOWEST 30 200 PM AVERAGE 65 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 55 64 1998 MINIMUM TEMPERATURE (F) 36 26 2005 SUNRISE AND SUNSET DECEMBER 15 2015......SUNRISE 718 AM PST SUNSET 450 PM PST DECEMBER 16 2015......SUNRISE 719 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. $$