272  
CDUS46 KMTR 170031  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
431 PM PST THU FEB 16 2023  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 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 3:43 PM 77 2007 61 -4 72  
MINIMUM 31 5:44 AM 27 2006 40 -9 40  
2018  
AVERAGE 44 51 -7 56  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.83 0.00  
SINCE OCT 1 18.03 15.38  
SINCE JAN 1 9.61 0.24  
 
DEGREE DAYS  
HEATING  
TODAY 21 9  
MONTH TO DATE 232 219  
SINCE DEC 1 1212 1296  
SINCE JUL 1 1812 1856  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 6:00 AM  
LOWEST 38 3:00 PM  
AVERAGE 58  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 75 2020  
MINIMUM TEMPERATURE (F) 40 31 2018  
2021  
 
SUNRISE AND SUNSET  
FEBRUARY 16 2023......SUNRISE 6:58 AM PST SUNSET 5:49 PM PST  
FEBRUARY 17 2023......SUNRISE 6:57 AM PST SUNSET 5:50 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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