NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report Month: December Year: 1977
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 0-0-0-0 *    
14 - 15 0-0-0-0 *    
15 - 16 0-0-0-0 *    
16 - 17 8-2-1-2   * *
17 - 18 6-2-1-1   * *
18 - 19 6-3-1-0   *  
19 - 20 6-3-0-0   *  
20 - 21 4-0-6-2   *  
21 - 22 0-0-0-0 *    
22 - 23 2-1-0-0 *    
23 - 24 0-0-0-0 *    
24 - 25 0-0-0-0 *    
25 - 26 1-1-0-0 *    
26 - 27 0-0-0-0 *    
27 - 28 0-0-0-0 *    
28 - 29 0-0-0-0 *    
29 - 30 3-4-6-6   * *
30 - 31 0-0-0-0 *    
31 - 01 0-0-0-0 *    
Totals 25 6 3
Min. Med. Max.
Temp. Deg. F   42 59 77
Humidity % RH   26   100
Wind speed M/H     32 55
Water, precipitation this month 00 tot.year: 103.7mm
Report by: Oscar Saa