NS
NSD
H
HD
IH
IHD
ES
J-S
Year
1
2
3
5
6
7
8
9
1949
13
62
7
22
3
5.25
-0.16
-0.10
1950
13
98
11
60
8
18.75
0.57
1.49
1951
10
58
8
36
5
8.25
-0.31
0.32
1952
7
40
23
3
6.75
0.62
1.00
1953
14
64
6
18
4
6.75
0.73
0.55
1954
11
44
8
32
2
9.50
0.39
0.77
1955
12
82
9
47
6
17.25
1.20
1.46
1956
8
30
4
13
2
2.75
0.16
0.40
1957
8
38
3
21
2
6.50
-0.02
0.52
1958
10
56
7
30
5
9.50
0.55
1.28
1959
11
41
7
22
2
4.25
-0.45
0.06
1960
7
30
4
18
2
11.00
0.55
0.51
1961
11
71
8
48
7
24.50
0.94
0.77
1962
5
22
3
11
1
0.50
-0.31
0.19
1963
9
52
7
37
2
7.00
0.21
-0.09
1964
12
71
6
43
6
14.75
1.00
0.88
1965
6
40
4
27
1
7.50
-0.28
0.54
1966
11
62
7
42
3
8.75
-0.37
0.07
1967
8
58
6
36
1
5.75
0.24
0.75
1968
7
26
4
10
0
0.00
-0.36
-0.75
1969
17
84
12
40
5
6.75
0.78
0.55
1970
10
24
5
7
2
1.00
-0.30
-0.45
1971
13
63
6
29
1
1.00
-0.30
-0.30
1972
4
21
3
6
0
0.00
-0.64
-1.16
1973
7
33
4
10
1
0.25
-0.61
-0.80
1974
7
32
4
14
2
4.25
-0.16
-0.23
1975
8
43
6
20
3
2.25
0.42
0.34
1976
8
45
6
26
2
1.00
-0.48
-0.56
1977
6
14
5
7
1
1.00
-0.72
-0.91
1978
11
40
5
14
2
3.50
-0.04
-0.18
1979
8
44
5
22
2
5.75
0.06
-0.54
1980
11
60
9
38
2
7.25
-0.46
-0.68
1981
11
61
7
22
3
3.75
0.06
-0.34
1982
5
16
2
6
1
1.25
-0.54
-0.88
1983
4
14
3
4
1
0.25
-0.72
-1.31
1984
12
51
5
18
1
0.75
-0.72
-1.16
1985
11
51
7
21
3
4.00
-0.18
-0.50
1986
6
23
4
10
0
0.00
-0.56
-0.37
1987
7
37
3
5
1
0.50
-0.50
-0.76
1988
12
47
5
24
3
8.00
0.29
0.18
1989
11
66
7
32
2
10.75
0.71
0.58
1990
14
68
8
27
1
1.00
-0.31
-0.95
Means
9.9
47.0
5.9
23.8
2.25
5.7
   
St. dev
2.9
20.0
2.2
13.3
1.8
5.5

Table 1. Summary of Atlantic tropical cyclone statistics and West African rainfall data for 1949-90. The numbered columns show yearly incidence of 1) named storms, 2) named storm days, 3) hurricanes, 4) hurricane days, 5) category 3-5 hurricanes, 6) category 3-5 hurricane days, 7) precipitation anomaly expressed as standardized deviations for the early season (prior to 1 August) rainfall, and 8) as in column 7 but for June through September western Sahel rainfall.