HailHistory › Hail by county › Iowa
Iowa · 99 counties
Hail history in Iowa
Iowa has 15,834 recorded hail events in the NOAA Storm Events Database since 1950 — 10,187 of them 1″ or larger. The largest on record: 8.0″ (grapefruit) in Fayette County on May 31, 1958.
When it hails in Iowa
All recorded Iowa events by month, 1950–present · data through April 2026.
Every Iowa county, ranked by recorded hail
| County | Events | ≥1″ | Largest | Most recent |
|---|---|---|---|---|
| Polk County | 670 | 442 | 3.25″ | 2025 |
| Linn County | 389 | 264 | 2.75″ | 2026 |
| Woodbury County | 369 | 207 | 4.5″ | 2026 |
| Warren County | 338 | 214 | 3.5″ | 2025 |
| Story County | 325 | 218 | 5.5″ | 2025 |
| Plymouth County | 277 | 166 | 3.5″ | 2026 |
| Benton County | 275 | 175 | 4.0″ | 2026 |
| Scott County | 270 | 158 | 7.0″ | 2026 |
| Pottawattamie County | 259 | 188 | 4.0″ | 2026 |
| Sioux County | 256 | 159 | 2.75″ | 2025 |
| Black Hawk County | 253 | 171 | 4.5″ | 2025 |
| Clay County | 250 | 143 | 4.25″ | 2026 |
| Dallas County | 249 | 156 | 3.0″ | 2025 |
| Johnson County | 229 | 139 | 2.75″ | 2026 |
| Webster County | 226 | 153 | 3.5″ | 2025 |
| Guthrie County | 223 | 148 | 4.5″ | 2025 |
| Jasper County | 220 | 159 | 4.5″ | 2025 |
| Harrison County | 217 | 144 | 3.0″ | 2026 |
| O'Brien County | 205 | 120 | 4.0″ | 2026 |
| Dubuque County | 200 | 136 | 4.5″ | 2026 |
| Kossuth County | 197 | 140 | 3.0″ | 2025 |
| Marion County | 196 | 138 | 4.0″ | 2025 |
| Boone County | 194 | 145 | 3.0″ | 2025 |
| Cerro Gordo County | 184 | 117 | 3.0″ | 2025 |
| Adair County | 175 | 128 | 4.5″ | 2025 |
| Cass County | 174 | 115 | 3.0″ | 2025 |
| Dickinson County | 174 | 84 | 2.5″ | 2026 |
| Lyon County | 173 | 111 | 4.0″ | 2025 |
| Butler County | 172 | 111 | 4.5″ | 2025 |
| Taylor County | 168 | 123 | 4.0″ | 2024 |
| Floyd County | 165 | 110 | 4.5″ | 2026 |
| Buchanan County | 164 | 94 | 3.25″ | 2026 |
| Cherokee County | 163 | 89 | 4.0″ | 2025 |
| Winneshiek County | 161 | 94 | 4.25″ | 2025 |
| Muscatine County | 160 | 95 | 2.75″ | 2024 |
| Lee County | 154 | 94 | 4.5″ | 2026 |
| Delaware County | 152 | 95 | 4.5″ | 2026 |
| Madison County | 152 | 107 | 4.0″ | 2025 |
| Buena Vista County | 151 | 103 | 3.0″ | 2026 |
| Marshall County | 150 | 93 | 3.0″ | 2025 |
| Hamilton County | 149 | 100 | 2.75″ | 2024 |
| Crawford County | 148 | 98 | 4.25″ | 2024 |
| Mills County | 145 | 95 | 3.0″ | 2026 |
| Pocahontas County | 145 | 94 | 4.5″ | 2025 |
| Monona County | 144 | 93 | 3.5″ | 2026 |
| Carroll County | 143 | 77 | 2.75″ | 2024 |
| Clayton County | 142 | 83 | 2.5″ | 2026 |
| Clinton County | 141 | 91 | 4.0″ | 2026 |
| Fayette County | 141 | 91 | 8.0″ | 2025 |
| Cedar County | 140 | 88 | 3.0″ | 2026 |
| Fremont County | 138 | 91 | 3.0″ | 2025 |
| Page County | 135 | 91 | 3.0″ | 2026 |
| Jones County | 134 | 75 | 3.0″ | 2026 |
| Shelby County | 133 | 72 | 3.0″ | 2026 |
| Calhoun County | 132 | 82 | 4.0″ | 2025 |
| Ida County | 130 | 79 | 4.5″ | 2026 |
| Hardin County | 129 | 78 | 3.0″ | 2025 |
| Bremer County | 128 | 96 | 2.75″ | 2025 |
| Van Buren County | 126 | 89 | 3.0″ | 2026 |
| Clarke County | 125 | 88 | 3.5″ | 2025 |
| Franklin County | 125 | 90 | 3.0″ | 2025 |
| Iowa County | 125 | 79 | 2.75″ | 2024 |
| Palo Alto County | 125 | 87 | 3.0″ | 2025 |
| Wapello County | 125 | 79 | 2.75″ | 2023 |
| Greene County | 123 | 85 | 2.75″ | 2024 |
| Des Moines County | 122 | 74 | 4.0″ | 2024 |
| Emmet County | 122 | 61 | 3.0″ | 2025 |
| Montgomery County | 122 | 86 | 3.0″ | 2026 |
| Osceola County | 120 | 71 | 4.0″ | 2026 |
| Union County | 120 | 91 | 3.0″ | 2025 |
| Audubon County | 117 | 70 | 3.0″ | 2025 |
| Appanoose County | 114 | 84 | 3.0″ | 2024 |
| Hancock County | 114 | 78 | 5.5″ | 2025 |
| Chickasaw County | 111 | 69 | 2.75″ | 2026 |
| Mitchell County | 110 | 56 | 3.0″ | 2025 |
| Sac County | 110 | 82 | 2.75″ | 2025 |
| Tama County | 109 | 81 | 3.75″ | 2025 |
| Henry County | 106 | 60 | 4.0″ | 2026 |
| Ringgold County | 105 | 68 | 4.5″ | 2024 |
| Winnebago County | 105 | 68 | 3.5″ | 2025 |
| Adams County | 102 | 70 | 3.0″ | 2025 |
| Humboldt County | 102 | 71 | 3.5″ | 2025 |
| Washington County | 101 | 64 | 2.75″ | 2026 |
| Howard County | 97 | 47 | 3.5″ | 2026 |
| Allamakee County | 96 | 48 | 2.5″ | 2026 |
| Wright County | 96 | 68 | 4.0″ | 2025 |
| Decatur County | 95 | 62 | 2.75″ | 2025 |
| Worth County | 94 | 67 | 2.75″ | 2025 |
| Jefferson County | 93 | 55 | 3.75″ | 2026 |
| Poweshiek County | 93 | 61 | 3.0″ | 2024 |
| Grundy County | 91 | 51 | 3.0″ | 2025 |
| Mahaska County | 91 | 65 | 4.75″ | 2024 |
| Davis County | 87 | 63 | 2.5″ | 2024 |
| Wayne County | 82 | 55 | 3.0″ | 2024 |
| Jackson County | 80 | 43 | 3.0″ | 2026 |
| Lucas County | 78 | 45 | 2.5″ | 2024 |
| Keokuk County | 71 | 50 | 3.0″ | 2026 |
| Louisa County | 67 | 45 | 2.75″ | 2026 |
| Monroe County | 61 | 41 | 3.25″ | 2024 |
Questions about hail in Iowa
How often does it hail in Iowa?
The NOAA Storm Events Database records 15,834 hail events for Iowa since 1950, 10,187 of them 1″ (quarter size) or larger. Recorded frequency varies sharply by county — the table on this page ranks all 99.
What is the largest hail ever recorded in Iowa?
8.0″ (grapefruit), recorded in Fayette County on May 31, 1958. See it at true size on the actual-size hail chart.
When is hail season in Iowa?
Recorded events peak in June. The by-month chart on this page shows the full seasonal shape — and each county page carries its own, since timing shifts across the state.
How do I check hail history for my address in Iowa?
Storm Events records events at the county level, so pick your county below or use the ZIP lookup. For "did it hail on this date" claim questions, the date lookup searches every recorded Iowa event.
Source: NOAA/NCEI Storm Events Database, public domain. Each county page shows the full event timeline, month profile, and storm-report narratives.