NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
	CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report		Month: May		Year: 1991
Date	Cloud cover	Photometric	Useful	Useless
1 - 2	1 - 2 - 2 - 5		*
2 - 3	3 - 5 - 6 - 7			*
3 - 4	4 - 5 - 6 - 5			*
4 - 5	2 - 4 - 3 - 6			*
5 - 6	0 - 0 - 0 - 0	*
6 - 7	0 - 0 - 0 - 1	*
7 - 8	0 - 1 - 2 - 3		*
8 - 9	1 - 2 - 5 - 6		*
9 - 10	3 - 5 - 5 - 6			*
10 - 11	8 - 8 - 8 - 8			*
11 - 12	1 - 2 - 1 - 1		*
12 - 13	0 - 0 - 0 - 0	*
13 - 14	6 - 7 - 7 - 7			*
14 - 15	7 - 8 - 8 - 8			*
15 - 16	8 - 4 - 1 - 0		*
16 - 17	0 - 0 - 0 - 0	*
17 - 18	2 - 0 - 0 - 0	*
18 - 19	3 - 3 - 4 - 4		*
19 - 20	7 - 8 - 8 - 8			*
20 - 21	5 - 6 - 3 - 1		*
21 - 22	1 - 2 - 2 - 2		*
22 - 23	3 - 2 - 1 - 0		*
23 - 24	4 - 3 - 2 - 3		*
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	5 - 5 - 4 - 3			*
29 - 30	8 - 8 - 8 - 8			*
30 - 31	2 - 3 - 1 - 0		*
31 - 01	1 - 2 - 0 - 1		*
	Totals	5	12	14
		Min.	Med.	Max.
Temperat. F degrees		34	62	82
Humidity % RH		6	20	84
Wind speed M/H		--	14	42
Rainfall this month:	0.0	this year:	0.0
			Report by: Oscar Saa