NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report December Year: 1976
Date Cloud cover Photometric Useful Useless
1 - 2 2-2-2-0 *    
2 - 3 0-0-0-0 *    
3 - 4 0-0-0-0 *    
4 - 5 0-3-5-5   * *
5 - 6 0-0-0-4 *    
6 - 7 0-0-0-0 *    
7 - 8 0-0-0-0 *    
8 - 9 0-0-0-3 *    
9 - 10 2-2-2-2 *    
10 - 11 0-0-0-0 *    
11 - 12 0-0-1-3 *    
12 - 13 0-0-1-0 *    
13 - 14 0-0-0-2 *    
14 - 15 1-2-0-4   *  
15 - 16 4-8-8-5     *
16 - 17 6-4-6-7     *
17 - 18 8-8-8-7     *
18 - 19 8-8-7-7     *
19 - 20 0-0-0-0 *    
20 - 21 0-0-0-2 *    
21 - 22 0-0-1-2 *    
22 - 23 0-0-0-0 *    
23 - 24 0-0-0-0 *    
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 1-2-2-0 *    
Totals 25 2 5
Min. Med. Max.
Temp. Deg. F   40 53 78
Humidity % RH   19   95
Wind speed M/H     36 56
Water, precipitation this month 00 tot.year: 66.5mm
Report by: Oscar Saa