970 CDUS46 KMTR 210834 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 134 AM PDT FRI AUG 21 2015 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 20 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 74 332 PM 87 2007 80 -6 72 MINIMUM 58 931 PM 46 2000 52 6 60 AVERAGE 66 66 0 66 PRECIPITATION (IN) YESTERDAY 0.00 0.00 MONTH TO DATE 0.01 0.07 SINCE OCT 1 16.43 9.70 SINCE JAN 1 4.04 8.34 DEGREE DAYS HEATING YESTERDAY 0 0 MONTH TO DATE 0 12 SINCE JUN 1 54 65 SINCE JUL 1 6 22 COOLING YESTERDAY 1 1 MONTH TO DATE 74 12 SINCE JUN 1 217 129 SINCE JAN 1 218 140 .................................................................. WIND (MPH) RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION W (250) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 12.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 500 AM LOWEST 61 1200 PM AVERAGE 77 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 80 90 2009 MINIMUM TEMPERATURE (F) 52 47 2001 SUNRISE AND SUNSET AUGUST 21 2015........SUNRISE 629 AM PDT SUNSET 755 PM PDT AUGUST 22 2015........SUNRISE 630 AM PDT SUNSET 753 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$