874 CDUS46 KMTR 200845 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1245 AM PST SAT DEC 20 2014 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 2014... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1998 TO 2014 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 56 1113 AM 78 1999 55 1 63 MINIMUM 51 733 PM 21 2006 36 15 30 AVERAGE 54 45 9 47 PRECIPITATION (IN) YESTERDAY 0.85 0.00 MONTH TO DATE 10.14 0.47 SINCE JUL 1 12.77 2.20 SINCE JAN 1 21.04 4.17 DEGREE DAYS HEATING YESTERDAY 11 18 MONTH TO DATE 205 442 SINCE DEC 1 205 442 SINCE JUL 1 678 1121 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 267 303 .................................................................. WIND (MPH) RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION E (110) HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 7.5 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HEAVY RAIN RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 400 AM LOWEST 83 100 AM AVERAGE 92 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 55 67 1999 MINIMUM TEMPERATURE (F) 36 25 2008 SUNRISE AND SUNSET DECEMBER 20 2014......SUNRISE 722 AM PST SUNSET 452 PM PST DECEMBER 21 2014......SUNRISE 722 AM PST SUNSET 453 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$