NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report Month: August Year: 1989
Date Cloud cover Photometric Useful Useless
1 - 2 0 - 0 - 0 - 0 *    
2 - 3 8 - 8 - 8 - 8     *
3 - 4 1 - 0 - 0 - 0 *    
4 - 5 0 - 0 - 0 - 0 *    
5 - 6 0 - 0 - 0 - 0 *    
6 - 7 5 - 6 - 8 - 1     *
7 - 8 0 - 0 - 0 - 0 *    
8 - 9 0 - 0 - 0 - 0 *    
9 - 10 0 - 0 - 0 - 3 *    
10 - 11 0 - 0 - 0 - 0 *    
11 - 12 2 - 3 - 4 - 3   *  
12 - 13 0 - 1 - 1 - 0   *  
13 - 14 0 - 0 - 0 - 0 *    
14 - 15 0 - 0 - 0 - 0 *    
15 - 16 1 - 4 - 1 - 1   *  
16 - 17 2 - 2 - 3 - 3   *  
17 - 18 1 - 0 - 0 - 0 *    
18 - 19 6 - 7 - 6 - 6     *
19 - 20 7 - 8 - 8 - 8     *
20 - 21 7 - 8 - 8 - 8     *
21 - 22 8 - 8 - 8 - 8     8
22 - 23 8 - 8 - 8 - 8     *
23 - 24 8 - 8 - 8 - 8     *
24 - 25 2 - 5 - 4 - 3   *  
25 - 26 2 - 4 - 4 - 4   *  
26 - 27 0 - 0 - 0 - 0 *    
27 - 28 0 - 0 - 0 - 0 *    
28 - 29 0 - 0 - 0 - 0 *    
29 - 30 0 - 0 - 0 - 0 *    
30 - 31 0 - 0 - 0 - 0 *    
31 - 01 0 - 0 - 0 - 0 *    
Totals 17 6 8
Min. Med. Max.
Temperat. deg.F   27 55 - 60 77
Humidity % RH   5 30 100
Wind speed M/H   00 10 - 15 55
Water, precipitation this month 30 tot.year: 63
Report by: Oscar Saa