711 CDUS46 KMTR 230845 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1245 AM PST MON DEC 23 2019 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 22 2019... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1998 TO 2019 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 56 252 PM 68 1999 55 1 55 MINIMUM 37 1159 PM 19 1998 36 1 36 AVERAGE 47 45 2 46 PRECIPITATION (IN) YESTERDAY 0.46 0.00 MONTH TO DATE 3.94 1.50 SINCE OCT 1 4.75 2.76 SINCE JAN 1 27.41 15.53 DEGREE DAYS HEATING YESTERDAY 18 19 MONTH TO DATE 294 335 SINCE DEC 1 294 335 SINCE JUL 1 894 902 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 346 182 .................................................................. WIND (MPH) RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (190) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SE (130) HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (140) AVERAGE WIND SPEED 6.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HEAVY RAIN RAIN LIGHT RAIN FOG FOG W/VISIBILITY <= 1/4 MILE RELATIVE HUMIDITY (PERCENT) HIGHEST 100 1100 AM LOWEST 59 300 AM AVERAGE 80 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 55 66 2004 MINIMUM TEMPERATURE (F) 36 20 2011 SUNRISE AND SUNSET DECEMBER 23 2019......SUNRISE 723 AM PST SUNSET 453 PM PST DECEMBER 24 2019......SUNRISE 723 AM PST SUNSET 454 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$