939 CDUS46 KMTR 200836 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 136 AM PDT MON OCT 20 2025 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR OCTOBER 19 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 75 4:25 PM 95 2023 75 0 82 MINIMUM 48 7:03 AM 37 2021 45 3 48 AVERAGE 62 60 2 65 PRECIPITATION (IN) YESTERDAY 0.00 0.00 MONTH TO DATE 1.25 T SINCE OCT 1 1.25 T SINCE JAN 1 9.57 13.84 DEGREE DAYS HEATING YESTERDAY 3 0 MONTH TO DATE 75 25 SINCE SEP 1 77 51 SINCE JUL 1 122 64 COOLING YESTERDAY 0 0 MONTH TO DATE 9 85 SINCE SEP 1 99 143 SINCE JAN 1 210 444 ................................................................... WIND (MPH) RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (190) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (220) HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (220) AVERAGE WIND SPEED 5.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG FOG W/VISIBILITY <= 1/4 MILE RELATIVE HUMIDITY (PERCENT) HIGHEST 100 3:00 AM LOWEST 53 3:00 PM AVERAGE 77 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 75 87 2015 2020 MINIMUM TEMPERATURE (F) 45 36 2008 SUNRISE AND SUNSET OCTOBER 20 2025.......SUNRISE 7:23 AM PDT SUNSET 6:24 PM PDT OCTOBER 21 2025.......SUNRISE 7:24 AM PDT SUNSET 6:23 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$