NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
	CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report		Month: July		Year: 1987
Date	Cloud cover	Photometric	Useful	Useless
1 - 2	1-1-4-8		*
2 - 3	0-0-0-0	*
3 - 4	0-0-0-0	*
4 - 5	0-0-0-0	*
5 - 6	0-1-1-3		*
6 - 7	7-8-8-8			*
7 - 8	3-3-5-8		*
8 - 9	8-8-8-8			*
9 - 10	8-8-8-8			*
10 - 11	8-8-8-8			*
11 - 12	8-8-8-8			*
12 - 13	8-8-8-8			*
13 - 14	8-8-8-8			*
14 - 15	8-8-8-8			*
15 - 16	8-8-8-8			*
16 - 17	8-8-8-8			*
17 - 18	3-4-8-8			*
18 - 19	8-8-8-8			*
19 - 20	0-0-0-0	*
20 - 21	1-1-4-8		*
21 - 22	8-8-8-8			*
22 - 23	1-1-2-2		*
23 - 24	8-8-8-8			*
24 - 25	8-8-8-8			*
25 - 26	8-8-8-8			*
26 - 27	8-8-8-8			*
27 - 28	8-8-8-8			*
28 - 29	7-4-1-1		*
29 - 30	0-0-0-0	*
30 - 31	1-1-1-1		*
31 - 01	0-0-0-0	*
	Totals	6	7	18
		Min.	Med.	Max.
Temp. Deg. F		18	~35	60
Humidity % RH		15	~50	100
Wind speed M/H		0	~15	60
Water, precipitation	this month	~120mm	tot.year:	152mm
			Report by: Oscar Saa