NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
	CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report		Month: September		Year: 1987
Date	Cloud cover	Photometric	Useful	Useless
1 - 2	6-2-0-0		*
2 - 3	0-0-0-0	*
3 - 4	5-5-0-0		*
4 - 5	1-0-0-0	*
5 - 6	0-0-1-2		*
6 - 7	8-8-8-8			*
7 - 8	7-7-7-7			*
8 - 9	2-0-0-0	*
9 - 10	2-1-1-2		*
10 - 11	0-0-0-0	*
11 - 12	0-0-0-0	*
12 - 13	2-6-8-7		*
13 - 14	0-2-7-7		*
14 - 15	8-8-8-8			*
15 - 16	1-0-0-0	*
16 - 17	3-0-0-0	*
17 - 18	0-0-0-1	*
18 - 19	2-3-7-6		*
19 - 20	8-8-8-8			*
20 - 21	8-8-8-8			*
21 - 22	7-7-3-6			*
22 - 23	2-2-2-2		*
23 - 24	1-0-0-0	*
24 - 25	7-7-7-7			*
25 - 26	1-1-2-3		*
26 - 27	1-2-2-2		*
27 - 28	7-7-7-7			*
28 - 29	2-8-8-8			*
29 - 30	8-8-8-3			*
30 - 31	0-0-0-0	*
31 - 01
	Totals	10	10	10
		Min.	Med.	Max.
Temp. Deg. F		24	54	72
Humidity % RH		~5	<30	90
Wind speed M/H		0	<10	43
Water, precipitation	this month	1.5mm	tot.year:	166.5mm
			Report by: Oscar Saa