901 CDUS46 KMTR 180826 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1226 AM PST FRI DEC 18 2015 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 17 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 55 410 PM 66 2000 55 0 57 MINIMUM 34 732 AM 24 2008 36 -2 43 AVERAGE 45 45 0 50 PRECIPITATION (IN) YESTERDAY 0.00 0.23 MONTH TO DATE 0.64 9.29 SINCE OCT 1 2.05 11.54 SINCE JAN 1 6.15 20.19 DEGREE DAYS HEATING YESTERDAY 20 15 MONTH TO DATE 278 182 SINCE DEC 1 278 182 SINCE JUL 1 819 655 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 378 267 .................................................................. WIND (MPH) RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION N (20) HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION E (70) HIGHEST GUST SPEED 7 HIGHEST GUST DIRECTION E (70) AVERAGE WIND SPEED 1.5 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 92 300 AM LOWEST 59 1200 PM AVERAGE 76 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 55 62 2003 MINIMUM TEMPERATURE (F) 36 21 2006 SUNRISE AND SUNSET DECEMBER 18 2015......SUNRISE 720 AM PST SUNSET 451 PM PST DECEMBER 19 2015......SUNRISE 721 AM PST SUNSET 451 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$