NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report Month: April Year: 1993
Date Cloud cover Photometric Useful Useless
1 - 2 4 - 4 -1 - 1   *  
2 - 3 0 - 0 - 0 - 0 *    
3 - 4 2 - 1 - 0 - 0   *  
4 - 5 0 - 0 - 0 - 0 *    
5 - 6 1 - 3 - 4 - 6   *  
6 - 7 0 - 0 - 0 - 0 *    
7 - 8 0 - 0 - 0 - 0 *    
8 - 9 0 - 0 - 0 - 0 *    
9 - 10 0 - 0 - 1 - 4   *  
10 - 11 0 - 0 - 2 - 5   *  
11 - 12 1 - 1 - 2 - 3   *  
12 - 13 2 - 3 - 5 - 7     *
13 - 14 4 - 5 - 8 - 8     *
14 - 15 8 - 8 - 8 - 8     *
15 - 16 7 - 5 - 6 - 7     *
16 - 17 8 - 8 - 8 - 8     *
17 - 18 0 - 0 - 1 - 2   *  
18 - 19 6 - 7 - 6 - 6     *
19 - 20 8 - 6 - 1 - 0     *
20 - 21 2 - 3 - 1 - 2   *  
21 - 22 8 - 3 - 3 - 1   *  
22 - 23 4 - 1 - 0 - 0   *  
23 - 24 1 - 0 - 0 - 0 *    
24 - 25 1 - 0 - 3 - 3   *  
25 - 26 1 - 3 - 1 - 0   *  
26 - 27 1 - 0 - 0 - 0 *    
27 - 28 0 - 0 - 0 - 0 *    
28 - 29 4 - 3 - 2 - 1   *  
29 - 30 2 - 1 - 0 - 0   *  
30 - 01 1 - 3 - 1 - 0   *  
Totals 8 15 7
Min. Med. Max.
Temperat. F degrees   34 58 76
Humidity % RH   <5 30 100
Wind speed M/H   -- 8 60
Rainfall this month: 16mm this year: 16mm
Report by: Oscar Saa