Hailstory
Storm map
By state
Accuracy
Lists
Hail history in Iowa
Counties ranked by days of 1-inch hail on radar since October 2020.
Rank
County
1-inch days
Largest
1
Franklin County
63
6.95 in
2
Plymouth County
61
4.75 in
3
Mitchell County
58
6.45 in
4
Story County
58
5.7 in
5
Woodbury County
56
4.75 in
6
Adair County
55
3.3 in
7
Jasper County
53
2.7 in
8
Sioux County
52
2.8 in
9
Cass County
51
3.3 in
10
Madison County
50
2.65 in
11
Pottawattamie County
49
3 in
12
Cherokee County
48
3.6 in
13
Kossuth County
48
2.15 in
14
Dallas County
47
3.75 in
15
Guthrie County
46
2.3 in
16
Marion County
46
2.8 in
17
Polk County
46
3.75 in
18
O'Brien County
45
3.95 in
19
Webster County
45
3.45 in
20
Hardin County
44
2.85 in
21
Harrison County
43
3.4 in
22
Sac County
41
2.5 in
23
Van Buren County
41
3.45 in
24
Marshall County
40
2.95 in
25
Mills County
40
3.7 in
26
Palo Alto County
40
2.75 in
27
Union County
40
3.05 in
28
Warren County
40
2.65 in
29
Boone County
39
3.8 in
30
Monona County
39
4.3 in
31
Lee County
38
2.45 in
32
Osceola County
38
2.2 in
33
Page County
38
4.2 in
34
Clay County
37
3.6 in
35
Ringgold County
37
3.05 in
36
Shelby County
37
2.7 in
37
Adams County
36
3.15 in
38
Crawford County
36
3.45 in
39
Jefferson County
36
3.4 in
40
Mahaska County
36
2.55 in
41
Poweshiek County
36
2.95 in
42
Tama County
36
2.75 in
43
Lyon County
35
3.05 in
44
Calhoun County
34
2.5 in
45
Clarke County
34
3.05 in
46
Dickinson County
34
2.25 in
47
Floyd County
34
2.7 in
48
Hancock County
34
2.85 in
49
Howard County
34
4.45 in
50
Montgomery County
34
3.25 in
51
Taylor County
34
3.85 in
52
Wayne County
34
2.45 in
53
Greene County
33
2.05 in
54
Hamilton County
33
3.45 in
55
Keokuk County
33
2.7 in
56
Pocahontas County
33
3.1 in
57
Wapello County
33
2.75 in
58
Washington County
33
3.05 in
59
Buchanan County
32
2.3 in
60
Buena Vista County
32
3.6 in
61
Fremont County
32
3.7 in
62
Grundy County
32
2.85 in
63
Wright County
32
2.35 in
64
Butler County
31
2.55 in
65
Davis County
31
2.55 in
66
Carroll County
30
3.5 in
67
Lucas County
30
2.85 in
68
Monroe County
30
3.8 in
69
Audubon County
29
2.5 in
70
Decatur County
29
3.2 in
71
Delaware County
29
2.8 in
72
Henry County
29
3.4 in
73
Ida County
29
2.75 in
74
Appanoose County
28
2.35 in
75
Benton County
28
2.15 in
76
Black Hawk County
28
2.6 in
77
Dubuque County
28
2.05 in
78
Emmet County
28
1.85 in
79
Allamakee County
27
3.05 in
80
Des Moines County
27
3.95 in
81
Winneshiek County
27
6.05 in
82
Cedar County
26
2.6 in
83
Clayton County
26
7.75 in
84
Humboldt County
25
2.7 in
85
Iowa County
25
3.55 in
86
Bremer County
24
2.85 in
87
Cerro Gordo County
24
2.55 in
88
Fayette County
24
6.2 in
89
Jones County
24
2 in
90
Muscatine County
24
2.15 in
91
Jackson County
23
2.45 in
92
Linn County
23
2.15 in
93
Louisa County
23
2.3 in
94
Winnebago County
23
7.4 in
95
Clinton County
22
2.05 in
96
Scott County
22
1.75 in
97
Johnson County
21
5.65 in
98
Worth County
21
2.65 in
99
Chickasaw County
18
2.2 in