Year
1959
1960
1961
1962
1963
1964
1965
Jan.
t
33.7
P R E C I
Feb.
0.1
5.1
t
PITATION
March
t
0.1
t
t
AT R E G G A N
April
t
t
May
t
t
t
t
TABLE I I
FROM FEBRUARY
June
t
2 . 7
t
0.6
t
July
0.2
?
1959 TO
Aug.
t
0 . 3
t
JANUARY
Sept.
6.8
t
t
1965«
Oct.
t
t
t
t
2 . 1
Nov.
t
t
6.9
t
t
Dec.
t
t
28.4
Total
6.9
3.0
t
12.6
2 . 4
2 8 . 4
° Rain in mm, t = traces.
III. PHYSICAL AND VEGETATIONAL ASPECTS OF THE SAHARA
113