662 CDUS46 KMTR 280826 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1226 AM PST SAT DEC 28 2019 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 27 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 61 328 PM 67 1999 54 7 61 MINIMUM 27 500 AM 25 2015 36 -9 34 AVERAGE 44 45 -1 48 PRECIPITATION (IN) YESTERDAY 0.00 0.00 MONTH TO DATE 4.33 1.94 SINCE OCT 1 5.14 3.20 SINCE JAN 1 27.80 15.97 DEGREE DAYS HEATING YESTERDAY 21 17 MONTH TO DATE 398 411 SINCE DEC 1 398 411 SINCE JUL 1 998 978 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 346 182 .................................................................. WIND (MPH) RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION S (170) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 3.5 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 92 500 AM LOWEST 40 300 PM AVERAGE 66 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 54 64 1999 MINIMUM TEMPERATURE (F) 36 24 2013 SUNRISE AND SUNSET DECEMBER 28 2019......SUNRISE 725 AM PST SUNSET 457 PM PST DECEMBER 29 2019......SUNRISE 725 AM PST SUNSET 457 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$