348  
CDUS46 KMTR 210826  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
126 AM PDT SAT JUN 21 2025  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JUNE 20 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 77 2:17 PM 103 2008 79 -2 68  
MINIMUM 50 6:11 AM 42 2010 52 -2 50  
2023  
AVERAGE 64 66 -2 59  
 
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 1 6  
MONTH TO DATE 55 35  
SINCE JUN 1 55 35  
SINCE JUL 1 2706 2467  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 2 35  
SINCE JUN 1 2 35  
SINCE JAN 1 19 45    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 15 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 16.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 4:00 AM  
LOWEST 33 12:00 PM  
AVERAGE 60  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 103 2022  
MINIMUM TEMPERATURE (F) 53 44 2019  
 
SUNRISE AND SUNSET  
JUNE 21 2025..........SUNRISE 5:46 AM PDT SUNSET 8:36 PM PDT  
JUNE 22 2025..........SUNRISE 5:47 AM PDT SUNSET 8:36 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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