420  
CDUS46 KMTR 110041  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
441 PM PST FRI MAR 10 2023  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR MARCH 10 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 59 3:59 PM 85 2004 64 -5 69  
MINIMUM 50 7:46 AM 27 2009 42 8 36  
AVERAGE 55 53 2 53  
 
PRECIPITATION (IN)  
TODAY 0.44 0.00  
MONTH TO DATE 3.33 0.06  
SINCE OCT 1 23.80 16.00  
SINCE JAN 1 15.38 0.86  
 
DEGREE DAYS  
HEATING  
TODAY 10 12  
MONTH TO DATE 172 142  
SINCE MAR 1 172 142  
SINCE JUL 1 2202 2214  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE MAR 1 0 0  
SINCE JAN 1 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 13.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1:00 AM  
LOWEST 57 3:00 PM  
AVERAGE 75  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 82 2005  
MINIMUM TEMPERATURE (F) 42 31 2009  
 
SUNRISE AND SUNSET  
MARCH 10 2023.........SUNRISE 6:28 AM PST SUNSET 6:11 PM PST  
MARCH 11 2023.........SUNRISE 6:26 AM PST SUNSET 6:12 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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