066  
CDUS46 KMTR 280839  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
139 AM PDT SUN JUL 28 2024  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 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 69 2:19 PM 89 2015 78 -9 74  
2021  
MINIMUM 56 2:47 AM 49 2000 55 1 57  
2015  
AVERAGE 63 67 -4 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T  
MONTH TO DATE 0.00 T  
SINCE OCT 1 19.88 29.51  
SINCE JAN 1 13.84 21.09  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 0  
MONTH TO DATE 4 7  
SINCE JUN 1 41 57  
SINCE JUL 1 4 7  
 
COOLING  
YESTERDAY 0 1  
MONTH TO DATE 151 85  
SINCE JUN 1 207 94  
SINCE JAN 1 217 103    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 10.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 11:00 PM  
LOWEST 61 3:00 PM  
AVERAGE 74  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 96 2015  
MINIMUM TEMPERATURE (F) 55 49 2016  
 
SUNRISE AND SUNSET  
JULY 28 2024..........SUNRISE 6:09 AM PDT SUNSET 8:22 PM PDT  
JULY 29 2024..........SUNRISE 6:10 AM PDT SUNSET 8:21 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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