We are now going to take a look at yearly net tropical activity from 1851 to 2005. This data is conceived by the same parameters and calculations used by Dr. William Gray and his team at Colorado State University. That is the Net Tropical Activity=(((Number Of Named Storms/Avg Number of Named Storms)+(Number of Storm Days/Avg Number of Storm Days) +(Number of Hurricanes/Avg Number Of Hurricanes) + (Number of Major Hurricanes/Avg Number Of Major Hurricanes) + (Number Of Major Hurricane Days/Avg Number Of Major Hurricane Days))/6)*100

The averages used in the above equation is based on average numbers of storms, storm days, hurricanes, hurricane days, major hurricanes, and major hurricane days over an 154 year period (1851-2005). Hurricaneville has compiled data and constructed a database of all the storms and hurricanes from 1851 to 2005. Note: Going through some of this information, as well as Dr. Gray's Information, you will notice some disparities. I believe that this is a result from the data collected for this database, and the definitions of what is a named storm day, hurricane day, and intense, or major hurricane day.

YearNamed StormsNamed Storm DaysHurricanesHurricane DaysMajor HurricanesMajor Hurricane DaysNet Tropical Activity
1851
6
21 days
3
11 days
1
1 days
50.0 percent
1852
5
13 days
5
26 days
1
3 days
67.5 percent
1853
8
10 days
4
19 days
2
9 days
90.7 percent
1854
5
11 days
3
9 days
1
2 days
45.4 percent
1855
5
7 days
4
5 days
1
2 days
44.1 percent
1856
6
13 days
4
14 days
2
4 days
70.0 percent
1857
4
8 days
3
15 days
0
0 days
31.3 percent
1858
6
11 days
6
17 days
0
0 days
47.4 percent
1859
8
8 days
7
22 days
1
3 days
74.8 percent
1860
7
17 days
6
19 days
1
2 days
68.4 percent
1861
8
17 days
6
16 days
0
0 days
53.1 percent
1862
6
13 days
3
15 days
0
0 days
37.2 percent
1863
9
12 days
5
16 days
0
0 days
49.8 percent
1864
5
9 days
3
10 days
0
0 days
30.1 percent
1865
7
14 days
3
15 days
0
0 days
39.6 percent
1866
7
10 days
7
30 days
1
5 days
85.2 percent
1867
9
16 days
7
21 days
1
1 days
73.5 percent
1868
4
8 days
3
11 days
0
0 days
28.5 percent
1869
10
10 days
7
19 days
1
1 days
71.6 percent
1870
11
17 days
10
32 days
2
4 days
113.2 percent
1871
8
30 days
6
25 days
2
5 days
98.0 percent
1872
5
23 days
4
24 days
0
0 days
49.0 percent
1873
5
22 days
3
24 days
2
5 days
78.6 percent
1874
7
32 days
4
14 days
0
0 days
49.7 percent
1875
6
14 days
5
24 days
1
1 days
62.6 percent
1876
5
17 days
4
18 days
2
2 days
66.7 percent
1877
8
34 days
3
18 days
1
1 days
64.2 percent
1878
12
48 days
10
50 days
2
11 days
161.3 percent
1879
8
35 days
5
17 days
2
3 days
85.5 percent
1880
11
45 days
9
35 days
2
6 days
129.7 percent
1881
7
26 days
4
16 days
0
0 days
48.6 percent
1882
6
21 days
5
24 days
2
3 days
80.6 percent
1883
4
14 days
3
21 days
2
5 days
71.2 percent
1884
4
19 days
4
24 days
1
2 days
60.5 percent
1885
8
33 days
6
17 days
1
1 days
72.7 percent
1886
12
50 days
9
47 days
4
6 days
160.7 percent
1887
19
78 days
11
45 days
2
8 days
178.4 percent
1888
9
47 days
6
30 days
2
3 days
104.8 percent
1889
9
55 days
6
24 days
0
0 days
76.6 percent
1890
4
18 days
2
8 days
1
3 days
45.4 percent
1891
10
38 days
7
37 days
1
2 days
98.9 percent
1892
9
50 days
5
32 days
0
0 days
77.0 percent
1893
12
54 days
10
40 days
5
25 days
225.5 percent
1894
7
30 days
5
46 days
4
13 days
149.6 percent
1895
6
24 days
2
19 days
0
0 days
41.5 percent
1896
7
33 days
6
43 days
2
8 days
118.8 percent
1897
6
37 days
3
15 days
0
0 days
47.3 percent
1898
11
50 days
5
28 days
1
2 days
93.1 percent
1899
9
54 days
5
40 days
2
18 days
155.4 percent
1900
7
44 days
3
15 days
2
5 days
85.3 percent
1901
12
84 days
5
21 days
0
0 days
89.3 percent
1902
5
36 days
3
10 days
0
0 days
41.5 percent
1903
10
45 days
7
36 days
1
5 days
109.9 percent
1904
5
33 days
3
8 days
0
0 days
38.8 percent
1905
5
29 days
1
5 days
1
2 days
43.7 percent
1906
11
63 days
6
41 days
3
14 days
164.5 percent
1907
5
28 days
0
0 days
0
0 days
21.4 percent
1908
10
50 days
6
31 days
1
4 days
102.4 percent
1909
11
54 days
6
29 days
4
10 days
149.9 percent
1910
5
25 days
3
21 days
1
4 days
65.5 percent
1911
4
27 days
3
12 days
0
0 days
37.1 percent
1912
6
30 days
4
24 days
1
5 days
77.8 percent
1913
4
15 days
3
17 days
0
0 days
35.6 percent
1914
1
6 days
0
0 days
0
0 days
4.5 percent
1915
5
26 days
4
31 days
3
13 days
121.0 percent
1916
14
55 days
11
52 days
6
16 days
224.4 percent
1917
3
10 days
2
16 days
2
8 days
69.6 percent
1918
5
20 days
3
8 days
0
0 days
33.3 percent
1919
3
13 days
1
11 days
1
7 days
51.9 percent
1920
4
17 days
4
12 days
0
0 days
36.1 percent
1921
6
25 days
4
24 days
2
6 days
87.9 percent
1922
4
16 days
2
17 days
1
6 days
59.6 percent
1923
7
29 days
3
16 days
1
3 days
64.6 percent
1924
8
40 days
5
28 days
2
7 days
107.0 percent
1925
2
8 days
1
2 days
0
0 days
11.8 percent
1926
11
44 days
8
48 days
6
24 days
224.9 percent
1927
7
31 days
4
19 days
2
6 days
88.8 percent
1928
6
36 days
4
17 days
1
6 days
78.3 percent
1929
3
12 days
3
15 days
1
4 days
52.0 percent
1930
2
18 days
2
14 days
1
2 days
42.8 percent
1931
9
47 days
2
4 days
1
1 days
58.6 percent
1932
11
64 days
6
31 days
4
14 days
167.2 percent
1933
21
93 days
10
55 days
5
11 days
228.9 percent
1934
11
66 days
6
17 days
0
0 days
80.2 percent
1935
6
27 days
5
35 days
3
9 days
117.7 percent
1936
16
57 days
7
33 days
1
3 days
118.6 percent
1937
9
39 days
3
19 days
0
0 days
56.8 percent
1938
8
31 days
3
19 days
1
5 days
75.4 percent
1939
5
37 days
3
9 days
1
2 days
56.3 percent
1940
8
44 days
4
16 days
0
0 days
58.0 percent
1941
6
31 days
4
14 days
2
3 days
74.6 percent
1942
10
48 days
4
12 days
1
1 days
73.0 percent
1943
10
37 days
5
26 days
2
7 days
108.2 percent
1944
11
46 days
7
31 days
3
8 days
136.0 percent
1945
11
50 days
5
18 days
3
8 days
122.2 percent
1946
6
28 days
3
9 days
1
1 days
51.5 percent
1947
9
37 days
5
31 days
2
8 days
112.7 percent
1948
9
39 days
6
34 days
4
9 days
140.3 percent
1949
13
51 days
7
28 days
3
8 days
139.9 percent
1950
13
53 days
11
47 days
8
22 days
254.2 percent
1951
10
43 days
8
35 days
5
11 days
166.1 percent
1952
7
40 days
6
26 days
3
10 days
124.9 percent
1953
14
57 days
6
22 days
4
9 days
149.1 percent
1954
11
45 days
8
35 days
2
12 days
144.1 percent
1955
12
58 days
9
47 days
6
25 days
238.2 percent
1956
8
38 days
4
17 days
2
4 days
86.4 percent
1957
8
40 days
3
24 days
2
8 days
100.7 percent
1958
10
48 days
7
31 days
5
11 days
162.2 percent
1959
11
52 days
7
28 days
2
5 days
118.4 percent
1960
7
41 days
4
23 days
2
11 days
110.5 percent
1961
11
45 days
8
36 days
7
28 days
237.9 percent
1962
5
31 days
3
14 days
1
2 days
57.3 percent
1963
9
43 days
7
47 days
2
9 days
135.8 percent
1964
12
65 days
6
39 days
6
19 days
208.3 percent
1965
6
38 days
4
32 days
1
9 days
98.5 percent
1966
11
60 days
7
50 days
3
13 days
169.9 percent
1967
8
44 days
6
24 days
1
8 days
102.7 percent
1968
8
54 days
5
16 days
0
0 days
65.5 percent
1969
18
89 days
12
49 days
5
11 days
223.6 percent
1970
10
63 days
5
9 days
2
4 days
98.4 percent
1971
13
70 days
6
27 days
1
2 days
107.9 percent
1972
7
49 days
3
8 days
0
0 days
49.4 percent
1973
8
52 days
4
15 days
1
1 days
72.9 percent
1974
11
51 days
4
15 days
2
6 days
102.2 percent
1975
9
48 days
6
21 days
3
4 days
111.1 percent
1976
10
53 days
6
25 days
2
3 days
105.7 percent
1977
6
23 days
5
10 days
1
2 days
59.4 percent
1978
12
55 days
5
18 days
2
5 days
108.2 percent
1979
9
59 days
5
23 days
2
7 days
113.4 percent
1980
11
44 days
9
40 days
3
9 days
150.9 percent
1981
12
68 days
7
25 days
3
5 days
134.2 percent
1982
6
29 days
2
8 days
1
2 days
50.9 percent
1983
4
23 days
3
5 days
1
1 days
42.7 percent
1984
13
59 days
5
23 days
1
2 days
97.3 percent
1985
11
62 days
7
25 days
3
6 days
132.7 percent
1986
6
39 days
4
14 days
0
0 days
50.7 percent
1987
7
49 days
3
7 days
1
2 days
63.8 percent
1988
12
55 days
5
27 days
3
14 days
150.1 percent
1989
11
66 days
7
35 days
2
12 days
149.7 percent
1990
14
70 days
8
32 days
1
1 days
116.8 percent
1991
8
42 days
4
12 days
2
2 days
78.8 percent
1992
7
37 days
4
17 days
1
4 days
74.8 percent
1993
8
39 days
4
16 days
1
2 days
71.1 percent
1994
7
44 days
3
10 days
0
0 days
48.7 percent
1995
19
98 days
11
61 days
5
14 days
243.3 percent
1996
13
83 days
9
47 days
6
17 days
227.2 percent
1997
8
44 days
3
11 days
1
3 days
69.4 percent
1998
14
80 days
10
36 days
3
12 days
181.0 percent
1999
12
65 days
8
35 days
5
15 days
191.0 percent
2000
15
62 days
8
34 days
3
7 days
152.9 percent
2001
15
93 days
9
31 days
4
8 days
179.2 percent
2002
12
57 days
4
15 days
2
5 days
103.7 percent
2003
16
104 days
7
39 days
3
20 days
210.8 percent
2004
15
75 days
9
44 days
6
29 days
260.7 percent
2005
28
132 days
15
54 days
7
25 days
333.6 percent
Averages
8.7
40.3 days
5.2
23.9 days
1.9
5.8 days
100.0 percent
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