457 CDUS46 KMTR 210825 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1225 AM PST SAT DEC 21 2013 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 2013... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1998 TO 2013 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 59 252 PM 67 1999 55 4 60 MINIMUM 29 728 AM 25 2008 36 -7 28 AVERAGE 44 45 -1 44 PRECIPITATION (IN) YESTERDAY 0.00 0.00 MONTH TO DATE 0.47 1.85 SINCE JUL 1 2.20 5.46 SINCE JAN 1 4.17 19.23 DEGREE DAYS HEATING YESTERDAY 21 21 MONTH TO DATE 463 332 SINCE DEC 1 463 332 SINCE JUL 1 1142 904 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 303 204 .................................................................. WIND (MPH) RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION S (190) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (340) HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (330) AVERAGE WIND SPEED 3.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 70 1000 PM LOWEST 19 1200 AM AVERAGE 45 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 55 71 1999 MINIMUM TEMPERATURE (F) 36 21 1998 SUNRISE AND SUNSET DECEMBER 21 2013......SUNRISE 722 AM PST SUNSET 453 PM PST DECEMBER 22 2013......SUNRISE 723 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. $$