NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
	CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report		Month: April		Year: 1991
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 - 1 - 1		*
5 - 6	1 - 3 - 4 - 1		*
6 - 7	0 - 0 - 0 - 1	*
7 - 8	1 - 1 - 0 - 2		*
8 - 9	4 - 3 - 2 - 1		*
9 - 10	1 - 1 - 0 - 0	*
10 - 11	3 - 3 - 4 - 3		*
11 - 12	6 - 6 - 6 - 5			*
12 - 13	8 - 8 - 8 - 5			*
13 - 14	8 - 8 - 7 - 5			*
14 - 15	8 - 8 - 7 - 5			*
15 - 16	8 - 8 - 7 - 6			*
16 - 17	0 - 0 - 0 - 0	*
17 - 18	1 - 1 - 0 - 0	*
18 - 19	0 - 0 - 0 - 0	*
19 - 20	0 - 0 - 0 - 0	*
20 - 21	4 - 2 - 1 - 0		*
21 - 22	0 - 0 - 0 - 0	*
22 - 23	1 - 2 - 3 - 2		*
23 - 24	0 - 0 - 0 - 0	*
24 - 25	0 - 0 - 0 - 0	*
25 - 26	0 - 0 - 0 - 0	*
26 - 27	0 - 0 - 1 - 1	*
27 - 28	1 - 0 - 0 - 0	*
28 - 29	0 - 0 - 3 - 3	*
29 - 30	3 - 2 - 2 - 1		*
30 - 01	0 - 0 - 0 - 0	*
	Totals	17	8	5
		Min.	Med.	Max.
Temperat. F degrees		44	64	85
Humidity % RH		5	36	86
Wind speed M/H		--	10	45
Rainfall this month:	0.0	this year:	0.0
			Report by: Oscar Saa