718 CDUS46 KMTR 220858 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1258 AM PST THU DEC 22 2016 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 21 2016... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1998 TO 2016 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 63 313 PM 71 1999 55 8 58 MINIMUM 35 1150 PM 21 1998 36 -1 47 AVERAGE 49 45 4 53 PRECIPITATION (IN) YESTERDAY 0.00 0.75 MONTH TO DATE 3.54 2.61 SINCE OCT 1 8.29 4.02 SINCE JAN 1 22.96 8.12 DEGREE DAYS HEATING YESTERDAY 16 12 MONTH TO DATE 344 347 SINCE DEC 1 344 347 SINCE JUL 1 848 888 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 186 378 .................................................................. WIND (MPH) RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (90) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90) HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (100) AVERAGE WIND SPEED 4.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 92 1100 PM LOWEST 48 300 PM AVERAGE 70 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 55 68 1999 MINIMUM TEMPERATURE (F) 36 19 1998 SUNRISE AND SUNSET DECEMBER 22 2016......SUNRISE 723 AM PST SUNSET 453 PM PST DECEMBER 23 2016......SUNRISE 723 AM PST SUNSET 454 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$