


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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672 CDUS46 KMTR 310035 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 535 PM PDT SAT AUG 30 2025 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 30 2025... VALID TODAY AS OF 0500 PM LOCAL TIME. 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) TODAY MAXIMUM 94 3:48 PM 96 2023 81 13 77 MINIMUM 52 6:10 AM 44 2010 53 -1 52 AVERAGE 73 67 6 65 PRECIPITATION (IN) TODAY 0.00 0.00 MONTH TO DATE 0.00 T SINCE OCT 1 16.08 19.88 SINCE JAN 1 8.10 13.84 DEGREE DAYS HEATING TODAY 0 0 MONTH TO DATE 7 8 SINCE JUN 1 109 50 SINCE JUL 1 45 13 COOLING TODAY 8 0 MONTH TO DATE 66 74 SINCE JUN 1 86 288 SINCE JAN 1 103 298 ................................................................... WIND (MPH) RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SW (210) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (210) AVERAGE WIND SPEED 3.7 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 97 4:00 AM LOWEST 26 3:00 PM AVERAGE 62 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 81 97 2017 MINIMUM TEMPERATURE (F) 53 42 2008 SUNRISE AND SUNSET AUGUST 30 2025........SUNRISE 6:37 AM PDT SUNSET 7:41 PM PDT AUGUST 31 2025........SUNRISE 6:38 AM PDT SUNSET 7:40 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$