NATIONAL OPTICAL ASTRONOMY OBSERVATORIES
CERRO TOLOLO INTER-AMERICAN OBSERVATORY
Meteorology Report						Month: April		Year: 1975
Date					Cloud cover	Photometric	Useful	Useless
1 - 2	0	0	0	0
2 - 3	0	0	0	0
3 - 4	7	3	0	0
4 - 5	8	4	1	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	3	5	8	8
10 - 11	1	1	0	0
11 - 12	0	0	0	0
12 - 13	2	4	8	7
13 - 14	1	6	6	1
14 - 15	0	0	0	0
15 - 16	0	0	0	0
16 - 17	0	0	0	0
17 - 18	1	1	0	0
18 - 19	0	0	0	0
19 - 20	0	0	0	0
20 - 21	0	0	0	0
21 - 22	0	0	0	0
22 - 23	0	0	0	0
23 - 24	2	5	7	8
24 - 25	7	5	2	1
25 - 26	0	0	0	0
26 - 27	1	1	0	0
27 - 28	2	3	3	1
28 - 29	2	2	1	2
29 - 30	2	3	2	3
30 - 01	1	1	0	0
					Totals	16	9	10
						Min.	Med.	Max.
Temp. Deg. F						33		76
Humidity % RH
Wind speed M/H							22	57
Water, precipitation					this month	00	tot.year:	03.3mm
							Report by: Oscar Saa