NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report Month: December Year: 1986
Date Cloud cover Photometric Useful Useless
1 - 2 5-3-2-3   *  
2 - 3 1-1-0-0   *  
3 - 4 2-1-1-1   *  
4 - 5 1-0-0-1   *  
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 1-2-2-0   *  
10 - 11 0-1-2-2   *  
11 - 12 0-0-0-0 *    
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 1-0-0-0 *    
17 - 18 2-1-2-5   *  
18 - 19 2-0-0-0 *    
19 - 20 0-0-0-0 *    
20 - 21 0-1-2-3   *  
21 - 22 0-1-2-2   *  
22 - 23 1-6-6-3   *  
23 - 24 4-2-1-2   *  
24 - 25 0-0-0-0 *    
25 - 26 0-0-0-0 *    
26 - 27 0-0-0-0 *    
27 - 28 1-1-1-1   *  
28 - 29 1-0-0-0 *    
29 - 30 0-0-0-1 *    
30 - 31 0-0-0-1 *    
31 - 01 0-0-0-0 *    
Totals 19 12  
Min. Med. Max.
Temp. Deg. F   50 65 80
Humidity % RH   14 38 50
Wind speed M/H   0 ~10 30
Water, precipitation this month 0.0mm tot.year: 62.8mm
Report by: Oscar Saa