030 CDUS46 KMTR 170836 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1235 AM PST THU DEC 17 2015 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 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 55 217 PM 69 2011 55 0 61 MINIMUM 28R 556 AM 28 2006 36 -8 43 AVERAGE 42 46 -4 52 PRECIPITATION (IN) YESTERDAY 0.00 0.72 MONTH TO DATE 0.64 9.06 SINCE OCT 1 2.05 11.31 SINCE JAN 1 6.15 19.96 DEGREE DAYS HEATING YESTERDAY 23 13 MONTH TO DATE 258 167 SINCE DEC 1 258 167 SINCE JUL 1 799 640 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 378 267 .................................................................. WIND (MPH) RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (70) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (90) HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (90) AVERAGE WIND SPEED 4.3 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 85 300 AM LOWEST 38 200 PM AVERAGE 62 .......................................................... 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 2015......SUNRISE 720 AM PST SUNSET 451 PM PST DECEMBER 18 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. $$