623  
CDUS46 KMTR 170043  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
443 PM PST MON JAN 16 2023  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JANUARY 16 2023  
 
VALID TODAY AS OF 0400 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 57 2:29 PM 74 2021 57 0 60  
MINIMUM 46 6:10 AM 20 2007 38 8 41  
AVERAGE 52 47 5 51  
 
PRECIPITATION (IN)  
TODAY 0.17 0.00  
MONTH TO DATE 8.58 0.24  
SINCE OCT 1 17.00 15.38  
SINCE JAN 1 8.58 0.24  
 
DEGREE DAYS  
HEATING  
TODAY 13 14  
MONTH TO DATE 192 261  
SINCE DEC 1 742 827  
SINCE JUL 1 1342 1387  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 12.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 4:00 AM  
LOWEST 57 1:00 PM  
AVERAGE 72  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 73 2021  
MINIMUM TEMPERATURE (F) 38 19 2012  
 
SUNRISE AND SUNSET  
JANUARY 16 2023.......SUNRISE 7:24 AM PST SUNSET 5:14 PM PST  
JANUARY 17 2023.......SUNRISE 7:24 AM PST SUNSET 5:15 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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