NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report Month: December Year: 1984
Date Cloud cover Photometric Useful Useless
1 - 2 0 - 0 - 0 - 0 *    
2 - 3 0 - 0 - 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 0 - 0 - 0 - 0 *    
12 - 13 0 - 0 - 0 - 0 *    
13 - 14 4 - 4 - 5 - 5     *
14 - 15 4 - 4 - 4 - 4     *
15 - 16 0 - 0 - 0 - 0 *    
16 - 17 0 - 0 - 0 - 0 *    
17 - 18 0 - 0 - 0 - 0 *    
18 - 19 1 - 1 - 0 - 0   *  
19 - 20 3 - 3 - 1 - 1   *  
20 - 21 0 - 2 - 2 - 3   *  
21 - 22 3 - 3 - 5 - 5     *
22 - 23 8 - 5 - 4 - 3     *
23 - 24 1 - 1 - 1 - 1   *  
24 - 25 0 - 0 - 0 - 0 *    
25 - 26 0 - 0 - 0 - 0 *    
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        
Totals 22 4 4
Min. Med. Max.
Temperat. deg.F   50 65 82
Humidity % RH   20 55 95
Wind speed M/H   00 10 34
Water, precipitation this month 00 tot.year: 487mm
Report by: Oscar Saa