147 CDUS46 KMTR 230838 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 138 AM PDT SUN SEP 23 2018 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 22 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 74 314 PM 99 2003 79 -5 73 MINIMUM 44 350 AM 39 2017 48 -4 39 AVERAGE 59 64 -5 56 PRECIPITATION (IN) YESTERDAY 0.00 0.00 MONTH TO DATE T 0.02 SINCE OCT 1 15.80 37.13 SINCE JAN 1 12.77 28.18 DEGREE DAYS HEATING YESTERDAY 6 9 MONTH TO DATE 45 29 SINCE SEP 1 45 29 SINCE JUL 1 86 39 COOLING YESTERDAY 0 0 MONTH TO DATE 1 117 SINCE SEP 1 1 117 SINCE JAN 1 153 499 .................................................................. WIND (MPH) RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (210) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (190) HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SE (120) AVERAGE WIND SPEED 6.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG FOG W/VISIBILITY <= 1/4 MILE RELATIVE HUMIDITY (PERCENT) HIGHEST 100 400 AM LOWEST 49 300 PM AVERAGE 75 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 79 94 2002 MINIMUM TEMPERATURE (F) 48 39 2005 SUNRISE AND SUNSET SEPTEMBER 23 2018.....SUNRISE 658 AM PDT SUNSET 704 PM PDT SEPTEMBER 24 2018.....SUNRISE 659 AM PDT SUNSET 703 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$