201  
CDUS46 KMTR 010828  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
128 AM PDT WED MAY 01 2024  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR APRIL 30 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 72 2:16 PM 87 2015 70 2 69  
MINIMUM 40 5:22 AM 31 2008 45 -5 44  
AVERAGE 56 58 -2 57  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE 0.96 0.14  
SINCE OCT 1 19.19 28.79  
SINCE JAN 1 13.15 20.37  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 8  
MONTH TO DATE 260 256  
SINCE MAR 1 631 684  
SINCE JUL 1 2279 2714  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 3  
SINCE MAR 1 0 3  
SINCE JAN 1 0 3    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 5.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 6:00 AM  
LOWEST 44 3:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 91 2017  
MINIMUM TEMPERATURE (F) 46 34 2008  
2011  
 
SUNRISE AND SUNSET  
MAY 1 2024...........SUNRISE 6:12 AM PDT SUNSET 8:01 PM PDT  
MAY 2 2024...........SUNRISE 6:11 AM PDT SUNSET 8:02 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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