365  
CDUS46 KMTR 220028  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
528 PM PDT FRI JUL 21 2023  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 21 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 85 3:41 PM 94 2012 78 7 74  
MINIMUM 55 5:02 AM 48 2001 55 0 52  
AVERAGE 70 67 3 63  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.00 0.00  
SINCE OCT 1 29.51 17.98  
SINCE JAN 1 21.09 2.84  
 
DEGREE DAYS  
HEATING  
TODAY 0 2  
MONTH TO DATE 7 7  
SINCE JUN 1 57 25  
SINCE JUL 1 7 7  
 
COOLING  
TODAY 5 0  
MONTH TO DATE 65 43  
SINCE JUN 1 74 132  
SINCE JAN 1 83 165    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 4.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 5:00 AM  
LOWEST 41 3:00 PM  
AVERAGE 64  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 106 2006  
MINIMUM TEMPERATURE (F) 55 44 2016  
 
SUNRISE AND SUNSET  
JULY 21 2023..........SUNRISE 6:03 AM PDT SUNSET 8:28 PM PDT  
JULY 22 2023..........SUNRISE 6:03 AM PDT SUNSET 8:27 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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