840  
CDUS46 KMTR 040032  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
532 PM PDT FRI OCT 03 2025  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR OCTOBER 3 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 74 MM 94 2014 78 -4 93  
MINIMUM 56 MM 38 2005 48 8 53  
AVERAGE 65 63 2 73  
 
PRECIPITATION (IN)  
TODAY T 0.00  
MONTH TO DATE 0.08 0.00  
SINCE OCT 1 0.08 0.00  
SINCE JAN 1 8.40 13.84  
 
DEGREE DAYS  
HEATING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE SEP 1 2 26  
SINCE JUL 1 47 39  
 
COOLING  
TODAY 0 8  
MONTH TO DATE 3 31  
SINCE SEP 1 93 89  
SINCE JAN 1 204 390    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 3:00 AM  
LOWEST 53 1:00 PM  
AVERAGE 75  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 94 2014  
2023  
MINIMUM TEMPERATURE (F) 48 35 2009  
 
SUNRISE AND SUNSET  
OCTOBER 3 2025.......SUNRISE 7:07 AM PDT SUNSET 6:48 PM PDT  
OCTOBER 4 2025.......SUNRISE 7:08 AM PDT SUNSET 6:47 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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