NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
	CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report		Month: December		Year: 1991
Date	Cloud cover	Photometric	Useful	Useless
1 - 2	1 - 0 - 1 - 3		*
2 - 3	0 - 0 - 0 - 0	*
3 - 4	0 - 0 - 0 - 0	*
4 - 5	0 - 0 - 0 - 0	*
5 - 6	0 - 0 - 0 - 0	*
6 - 7	0 - 0 - 0 - 0	*
7 - 8	0 - 0 - 0 - 0	*
8 - 9	0 - 0 - 0 - 0	*
9 - 10	5 - 6 - 8 - 8			*
10 - 11	1 - 0 - 0 - 2		*
11 - 12	4 - 4 - 7 - 8			*
12 - 13	8 - 8 - 8 - 8			*
13 - 14	7 - 6 - 7 - 6			*
14 - 15	5 - 1 - 0 - 1		*
15 - 16	4 - 3 - 4 - 3		*
16 - 17	2 - 1 - 0 - 0		*
17 - 18	0 - 0 - 0 - 0	*
18 - 19	0 - 0 - 0 - 0	*
19 - 20	3 - 2 - 3 - 1		*
20 - 21	4 - 6 - 7 - 8			*
21 - 22	5 - 2 - 1 - 0		*
22 - 23	0 - 0 - 0 - 0	*
23 - 24	0 - 0 - 0 - 0	*
24 - 25	Observatory	closed
25 - 26	Observatory	closed
26 - 27	0 - 0 - 0 - 0	*
27 - 28	0 - 0 - 0 - 0	*
28 - 29	3 - 4 - 6 - 8			*
29 - 30	8 - 8 - 6 - 7			*
30 - 31	4 - 3 - 2 - 2		*
31 - 01	5 - 4 - 2 - 2		*
	Totals	13	8	8
		Min.	Med.	Max.
Temperat. F degrees		34	60	77
Humidity % RH		5	40	100
Wind speed M/H		--	8	34
Rainfall this month:	1.5mm	this year:	165mm
			Report by: Oscar Saa