CDUS46 KMTR 130825 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1225 AM PST SAT DEC 13 2025 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 12 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 49 2:11 PM 64 2018 58 -9 57 MINIMUM 39 8:54 PM 26 2013 38 1 46 AVERAGE 44 48 -4 52 PRECIPITATION (IN) YESTERDAY 0.00 0.62 MONTH TO DATE T 0.68 SINCE OCT 1 3.46 4.94 SINCE JAN 1 11.78 18.78 DEGREE DAYS HEATING YESTERDAY 21 13 MONTH TO DATE 232 165 SINCE DEC 1 232 165 SINCE JUL 1 707 705 COOLING YESTERDAY 0 0 MONTH TO DATE 0 0 SINCE DEC 1 0 0 SINCE JAN 1 211 444 ................................................................... WIND (MPH) RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION E (80) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (80) HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION E (80) AVERAGE WIND SPEED 12.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 12:00 AM LOWEST 82 12:00 PM AVERAGE 91 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 57 62 2023 MINIMUM TEMPERATURE (F) 38 24 2007 2013 SUNRISE AND SUNSET DECEMBER 13 2025......SUNRISE 7:17 AM PST SUNSET 4:50 PM PST DECEMBER 14 2025......SUNRISE 7:18 AM PST SUNSET 4:50 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$