Weather Conditions related to Adder Surveying
| 
       
  | 
    
       Rainy days 0.2mm or more)  | 
    
       Sunny days (5 hours or more)  | 
    
       No. of Survey Days  | 
  |||
| 
       Year  | 
    
       March  | 
    
       April  | 
    
       March  | 
    
       April  | 
    
       March  | 
    
       April  | 
  
| 
       1990  | 
    
       6  | 
    
       12  | 
    
       15  | 
    
       20  | 
    
       21  | 
    
       22  | 
  
| 
       1991  | 
    
       17  | 
    
       14  | 
    
       5  | 
    
       11  | 
    
       18  | 
    
       19  | 
  
| 
       1992  | 
    
       24  | 
    
       18  | 
    
       2  | 
    
       9  | 
    
       18  | 
    
       20  | 
  
| 
       1993  | 
    
       7  | 
    
       17  | 
    
       9  | 
    
       7  | 
    
       21  | 
    
       20  | 
  
| 
       1994  | 
    
       22  | 
    
       15  | 
    
       12  | 
    
       12  | 
    
       22  | 
    
       23  | 
  
| 
       1995  | 
    
       19  | 
    
       5  | 
    
       14  | 
    
       15  | 
    
       18  | 
    
       24  | 
  
| 
       1996  | 
    
       15  | 
    
       15  | 
    
       1  | 
    
       8  | 
    
       9  | 
    
       25  | 
  
| 
       1997  | 
    
       6  | 
    
       6  | 
    
       8  | 
    
       13  | 
    
       22  | 
    
       22  | 
  
| 
       1998  | 
    
       13  | 
    
       25  | 
    
       6  | 
    
       10  | 
    
       20  | 
    
       20  | 
  
| 
       1999  | 
    
       20  | 
    
       23  | 
    
       10  | 
    
       12  | 
    
       18  | 
    
       23  | 
  
| 
       2000  | 
    
       12  | 
    
       21  | 
    
       14  | 
    
       12  | 
    
       22  | 
    
       19  | 
  
| 
       2001  | 
    
       Data incomplete due to FMD  | 
  |||||
| 
       2002  | 
    
       10  | 
    
       12  | 
    
       14  | 
    
       18  | 
    
       13  | 
    
       20  | 
  
| 
       2003  | 
    
       9  | 
    
       9  | 
    
       21  | 
    
       17  | 
    
       23  | 
    
       24  | 
  
| 
       2004  | 
    
       20  | 
    
       17  | 
    
       9  | 
    
       15  | 
    
       17  | 
    
       20  | 
  
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