797  
CDUS46 KMTR 280828  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1228 AM PST SUN JAN 28 2024  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JANUARY 27 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 66 1:42 PM 71 2012 58 8 MM  
MINIMUM 48 8:05 AM 28 2001 39 9 35  
AVERAGE 57 48 9 MM  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE 3.19 8.78  
SINCE OCT 1 9.23 17.20  
SINCE JAN 1 3.19 8.78  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 MM  
MONTH TO DATE 412 356  
SINCE DEC 1 823 906  
SINCE JUL 1 1229 1506  
 
COOLING  
YESTERDAY 0 MM  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 2:00 AM  
LOWEST 54 2:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 68 2014  
MINIMUM TEMPERATURE (F) 39 27 1999  
2012  
 
SUNRISE AND SUNSET  
JANUARY 28 2024.......SUNRISE 7:17 AM PST SUNSET 5:27 PM PST  
JANUARY 29 2024.......SUNRISE 7:17 AM PST SUNSET 5:28 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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