447  
CDUS46 KMTR 290830  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
130 AM PDT FRI MAY 29 2026  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 28 2026
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 71 5:19 PM 92 2003 75 -4 72  
MINIMUM 53 5:30 AM 35 2010 50 3 50  
AVERAGE 62 62 0 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.23 0.00  
MONTH TO DATE 0.64 0.20  
SINCE OCT 1 17.03 16.08  
SINCE JAN 1 9.60 8.10  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 4  
MONTH TO DATE 102 128  
SINCE MAR 1 509 794  
SINCE JUL 1 2307 2649  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 9 7  
SINCE MAR 1 17 9  
SINCE JAN 1 17 9    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION E (110)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 8.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 4:00 AM  
LOWEST 44 4:00 PM  
AVERAGE 71  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 87 2002  
MINIMUM TEMPERATURE (F) 50 38 2006  
 
SUNRISE AND SUNSET  
MAY 29 2026...........SUNRISE 5:49 AM PDT SUNSET 8:25 PM PDT  
MAY 30 2026...........SUNRISE 5:48 AM PDT SUNSET 8:25 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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