642  
CDUS46 KMTR 020840  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
140 AM PDT WED APR 02 2025  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR APRIL 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 59 3:00 PM 85 2000 66 -7 73  
MINIMUM 42 11:55 PM 33 1999 42 0 46  
2015  
AVERAGE 51 54 -3 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.22 0.00  
MONTH TO DATE 0.22 0.00  
SINCE OCT 1 15.84 18.23  
SINCE JAN 1 7.86 12.19  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 5  
MONTH TO DATE 14 5  
SINCE MAR 1 415 376  
SINCE JUL 1 2270 2024  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE MAR 1 2 0  
SINCE JAN 1 2 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 13.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 8:00 AM  
LOWEST 60 2:00 PM  
AVERAGE 75  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 82 2000  
MINIMUM TEMPERATURE (F) 42 35 2008  
2020  
 
SUNRISE AND SUNSET  
APRIL 2 2025.........SUNRISE 6:52 AM PDT SUNSET 7:34 PM PDT  
APRIL 3 2025.........SUNRISE 6:51 AM PDT SUNSET 7:35 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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