812 CDUS46 KMTR 080838 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1238 AM PST SAT DEC 8 2018 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 7 2018... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1998 TO 2018 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 62 348 PM 70 2001 57 5 68 MINIMUM 35 730 AM 22 2009 36 -1 35 AVERAGE 49 46 3 52 PRECIPITATION (IN) YESTERDAY 0.00 0.00 MONTH TO DATE 0.63 0.01 SINCE OCT 1 1.89 2.98 SINCE JAN 1 14.66 31.16 DEGREE DAYS HEATING YESTERDAY 16 13 MONTH TO DATE 112 106 SINCE DEC 1 112 106 SINCE JUL 1 679 634 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 182 530 .................................................................. WIND (MPH) RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NE (50) HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (90) HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION E (90) AVERAGE WIND SPEED 4.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 200 AM LOWEST 43 300 PM AVERAGE 68 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 57 65 2014 MINIMUM TEMPERATURE (F) 36 19 2009 SUNRISE AND SUNSET DECEMBER 8 2018......SUNRISE 713 AM PST SUNSET 449 PM PST DECEMBER 9 2018......SUNRISE 714 AM PST SUNSET 449 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$