230  
CDUS46 KMTR 020838  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
138 AM PDT MON JUN 02 2025  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JUNE 1 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 67 12:51 PM 91 2013 76 -9 77  
MINIMUM 54 11:59 PM 40 2008 50 4 51  
AVERAGE 61 63 -2 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE 0.00 0.00  
SINCE OCT 1 16.08 19.88  
SINCE JAN 1 8.10 13.84  
 
DEGREE DAYS  
HEATING  
YESTERDAY 4 1  
MONTH TO DATE 4 1  
SINCE JUN 1 4 1  
SINCE JUL 1 2655 2433  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE JUN 1 0 0  
SINCE JAN 1 17 10    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 16 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 15.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 4:00 AM  
LOWEST 65 4:00 PM  
AVERAGE 79  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 91 2018  
2020  
MINIMUM TEMPERATURE (F) 50 40 2008  
 
SUNRISE AND SUNSET  
JUNE 2 2025..........SUNRISE 5:47 AM PDT SUNSET 8:28 PM PDT  
JUNE 3 2025..........SUNRISE 5:47 AM PDT SUNSET 8:28 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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