NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
	CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report		Month: July		Year: 1977
Date	Cloud cover	Photometric	Useful	Useless
1 - 2	6-8-8-8
2 - 3	0-1-0-1		*
3 - 4	3-4-4-3			*
4 - 5	7-7-7-7			*
5 - 6	2-0-0-0	*
6 - 7	0-0-0-0	*
7 - 8	0-0-0-0	*
8 - 9	0-0-0-0	*
9 - 10	1-3-8-8		*
10 - 11	8-8-8-8			*
11 - 12	8-8-8-8			*
12 - 13	8-8-8-8			*
13 - 14	0-0-0-0	*
14 - 15	8-4-0-4			*
15 - 16	0-0-3-4	*
16 - 17	0-1-1-1		*
17 - 18	1-2-4-8		*
18 - 19	1-1-4-8		*
19 - 20	7-7-6-8			*
20 - 21	8-8-8-8			*
21 - 22	8-8-8-8			*
22 - 23	8-8-8-8			*
23 - 24	6-2-3-2		*
24 - 25	3-2-1-1		*
25 - 26	1-1-1-1		*
26 - 27	8-0-0-0	*
27 - 28	0-0-0-0	*
28 - 29	0-0-0-0	*
29 - 30	8-8-8-8			*
30 - 31	0-0-0-0	*
31 - 01	7-1-0-0	*
	Totals	9	8
		Min.	Med.	Max.
Temp. Deg. F		25	41	78
Humidity % RH		5		100
Wind speed M/H			46	64
Water, precipitation	this month	33.7mm	tot.year:	62.2mm
			Report by: Oscar Saa