NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
	CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report		Month: September		Year: 1991
Date	Cloud cover	Photometric	Useful	Useless
1 - 2	0 - 0 - 0 - 0	*
2 - 3	4 - 3 - 2 - 2		*
3 - 4	3 - 4 - 4 - 5			*
4 - 5	8 - 8 - 8 - 8			*
5 - 6	0 - 0 - 0 - 0	*
6 - 7	2 - 8 - 2 - 1			*
7 - 8	2 - 5 -2 - 2			*
8 - 9	1 - 2 - 1 - 0		*
9 - 10	3 - 4 - 2 - 1			*
10 - 11	1 - 0 - 0 - 0	*
11 - 12	0 - 0 - 0 - 0	*
12 - 13	3 - 2 - 1 - 0		*
13 - 14	2 - 2 - 2 - 1		*
14 - 15	3 - 5 - 5 - 6			*
15 - 16	8 - 8 - 8 - 8			*
16 - 17	8 - 8 - 8 - 8			*
17 - 18	0 - 0 - 0 - 1	*
18 - 19	1 - 2 - 1 - 1		*
19 - 20	1 - 2 - 2 - 2		*
20 - 21	6 - 5 - 5 - 4			*
21 - 22	6 - 5 - 5 - 3		*
22 - 23	0 - 0 - 0 - 0	*
23 - 24	0 - 0 - 0 - 1	*
24 - 25	0 - 0 - 0 - 0	*
25 - 26	0 - 0 - 0 - 0	*
26 - 27	5 - 5 - 6 - 6			*
27 - 28	7 - 7 - 6 - 6			*
28 - 29	1 - 0 - 8 - 8			*
29 - 30	5 - 4 - 1 - 1			*
30 - 01	2 - 0 - 0 - 0	*
	Totals	10	7	13
		Min.	Med.	Max.
Temperat. F degrees		32	58	78
Humidity % RH		10	30	100
Wind speed M/H		--	--	--
Rainfall this month:	1.5mm	this year:	163.5mm
			Report by: Oscar Saa