785 CDUS46 KMTR 190904 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 104 AM PST SAT DEC 19 2015 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 18 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 58 207 PM 62 2003 55 3 56 MINIMUM 45 558 AM 21 2006 36 9 50 AVERAGE 52 45 7 53 PRECIPITATION (IN) YESTERDAY 0.39 T MONTH TO DATE 1.03 9.29 SINCE OCT 1 2.44 11.54 SINCE JAN 1 6.54 20.19 DEGREE DAYS HEATING YESTERDAY 13 12 MONTH TO DATE 291 194 SINCE DEC 1 291 194 SINCE JUL 1 832 667 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 378 267 .................................................................. WIND (MPH) RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SE (140) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (180) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (180) AVERAGE WIND SPEED 5.8 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 100 800 PM LOWEST 71 1100 AM AVERAGE 86 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 55 78 1999 MINIMUM TEMPERATURE (F) 36 21 2006 SUNRISE AND SUNSET DECEMBER 19 2015......SUNRISE 721 AM PST SUNSET 451 PM PST DECEMBER 20 2015......SUNRISE 721 AM PST SUNSET 452 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$