NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
	CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report		Month: April		Year: 1983
Date	Cloud cover	Photometric	Useful	Useless
1 - 2	1 - 0 - 0 - 1		*
2 - 3	3 - 2 - 5 - 7			*
3 - 4	0 - 0 - 0 - 0	*
4 - 5	0 - 0 - 0 - 0	*
5 - 6	0 - 0 - 3 - 4		*
6 - 7	3 - 2 - 3 - 4		*
7 - 8	3 - 4 - 4 - 5		*
8 - 9	4 - 4 - 4 - 4		*
9 - 10	0 - 0 - 0 - 0	*
10 - 11	0 - 0 - 0 - 1	*
11 - 12	7 - 7 - 7 - 7			*
12 - 13	7 - 7 - 7 - 7			*
13 - 14	1 - 4 - 7 - 7			*
14 - 15	2 - 3 - 7 - 7			*
15 - 16	2 - 3 - 7 - 7		*
16 - 17	6 - 7 - 8 - 7			*
17 - 18	6 - 2 - 1 - 0		*
18 - 19	1 - 1 - 0 - 0		*
19 - 20	3 - 1 - 0 - 0		*
20 - 21	3 - 4 - 3 - 3		*
21 - 22	0 - 1 - 3 - 5		*
22 - 23	7 - 6 - 8 - 8			*
23 - 24	8 - 8 - 8 - 8			*
24 - 25	1 - 0 - 0 - 0	*
25 - 26	0 - 0 - 0 - 0	*
26 - 27	0 - 0 - 3 - 4		*
27 - 28	5 - 4 - 5 - 6			*
28 - 29	1 - 3 - 4 - 4		*
29 - 30	3 - 5 -  8 - 8			*
30 - 31	8 - 8 - 8 - 8			*
31 - 01
	Totals	6	13	11
		Min.	Med.	Max.
Temperat. deg.F		44	60	79
Humidity % RH		10	35	100
Wind speed M/H		00	15 - 20	65
Water, precipitation	this month	6	tot.year:	6
			Report by: Oscar Saa