NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report Month: April Year: 1982
Date Cloud cover Photometric Useful Useless
1 - 2 0 - 0 - 0 - 0 *    
2 - 3 0 - 1 - 0 - 0 *    
3 - 4 0 - 0 - 0 - 0 *    
4 - 5 0 - 0 - 0 - 0 *    
5 - 6 0 - 0 - 0 - 0 *    
6 - 7 0 - 0 - 0 - 0 *    
7 - 8 0 - 0 - 0 - 0 *    
8 - 9 0 - 0 - 0 - 0 *    
9 - 10 0 - 0 - 0 - 0 *    
10 - 11 0 - 0 - 0 - 0 *    
11 - 12 2 - 1 - 1 - 0   *  
12 - 13 0 - 0 - 0 - 0 *    
13 - 14 0 - 0 - 0 - 0 *    
14 - 15 0 - 0 - 0 - 0 *    
15 - 16 0 - 0 - 0 - 0 *    
16 - 17 0 - 0 - 0 - 0 *    
17 - 18 2 - 0 - 0 - 0 *    
18 - 19 0 - 0 - 0 - 0 *    
19 - 20 0 - 0 - 0 - 2 *    
20 - 21 1 - 0 - 4 - 4   *  
21 - 22 1 - 0 - 0 - 0 *    
22 - 23 0 - 0 - 0 - 0 *    
23 - 24 0 - 0 - 0 - 0 *    
24 - 25 2 - 2 - 1 - 0   *  
25 - 26 1 - 1 - 1 - 1   *  
26 - 27 3 - 2 - 2 - 2   *  
27 - 28 3 - 2 - 1 - 1   *  
28 - 29 4 - 2 - 1 - 1   *  
29 - 30 0 - 0 - 0 - 0 *    
30 - 31 0 - 0 - 0 - 0 *    
31 - 01        
Totals 23 7  
Min. Med. Max.
Temperat. deg.F   46 65 80
Humidity % RH   10 30 67
Wind speed M/H   00 15 60
Water, precipitation this month 00 tot.year: 2
Report by: Oscar Saa