696  
CDUS46 KMTR 240028  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
528 PM PDT TUE MAY 23 2023  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 23 2023
 
 
VALID TODAY AS OF 0500 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 67 2:28 PM 91 2000 74 -7 84  
MINIMUM 55 6:41 AM 31 2010 49 6 47  
AVERAGE 61 62 -1 66  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.70 0.00  
SINCE OCT 1 29.49 17.71  
SINCE JAN 1 21.07 2.57  
 
DEGREE DAYS  
HEATING  
TODAY 4 0  
MONTH TO DATE 127 117  
SINCE MAR 1 811 790  
SINCE JUL 1 2841 2862  
 
COOLING  
TODAY 0 1  
MONTH TO DATE 6 14  
SINCE MAR 1 9 21  
SINCE JAN 1 9 21    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 17 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 17.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 12:00 AM  
LOWEST 61 1:00 PM  
AVERAGE 72  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 93 2022  
MINIMUM TEMPERATURE (F) 49 38 2011  
2013  
 
SUNRISE AND SUNSET  
MAY 23 2023...........SUNRISE 5:52 AM PDT SUNSET 8:20 PM PDT  
MAY 24 2023...........SUNRISE 5:52 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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