FloodZoneMap.org

Flood — Delaware, IN

Sep 1, 2003

8 to 10 inches of rain fell across central Indiana during the Labor Day weekend causing major flooding along parts of the White River. In fact, Indianapolis received the most rain ever for a calendar day (7.2 inches) breaking the old record set in 1895 (6.8 inches). According to a local newspaper account, nearly 3,000 residents across central Indiana applied for flood assistance and flood damage was estimated in excess of 20 million dollars. SEMA reports indicated more than 300 homes and nearly

Source: NOAA National Weather Service Storm Events Database (event 5336927). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Delaware, IN

This event is one of many recorded floods in Delaware County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Delaware County flood data →

More Flood Stories

Flash Flood$25K damage

Delaware, IN · Jul 26, 2025

Marginally hot and humid conditions on the 26th combined with remnant outflow boundaries and a weak upper level disturbence amid the overall ridge-rider pattern, to produce scattered late day and evening thunderstorms.

Read the full account →
Flash Flood$50K damage

Delaware, IN · Apr 4, 2025

The final round of rain in a stretch of 4 days brought rain amounts of 2-4.5 inches of rain to central Indiana in addition to the 3-5 inches that had fallen.

Read the full account →
Flash Flood$25K damage

Delaware, IN · Mar 28, 2020

On March 28th, a strong low pressure system brought 3 rounds of severe thunderstorms to central Indiana. The first round brought widespread 1 to 1.75 inch hail to much of the area with the second event bringing additional large hail and flash flooding.

Read the full account →
Flash Flood$25K damage

Delaware, IN · Jul 17, 2022

A complex of storms moved over portions of Madison and Delaware county causing widespread flooding and pockets of flash flooding. The rain fell over the course of several hours with amounts of over 6 inches in spots.

Read the full account →