Water Damage Restoration in Dayton, OH
Dayton by the numbers: 43 flood report days from 2016 to 2025, 107 freezing nights a year, 2 federal disaster declarations since 2016. Below: first steps, the records, Ohio insurance rules and costs.
Updated November 2, 2026
First Steps for Water in a Home in Dayton
- Burst pipe: shut the main water valve, then open the lowest faucet to drain the lines (burst pipe steps).
- Stay clear of wet outlets and cords.
- Photograph the damage, then call your insurer.
Dayton Flood Record
NOAA has 101 flood and flash flood reports for Greene, Miami and Montgomery counties from 2016 to 2025, on 43 separate days; June had the most.
At the Dayton Mcd gauge, April is the wettest month with 4.5 inches on average.
| Month | Flood report days | Normal precipitation (in) |
|---|---|---|
| January | 0 | 3.2 |
| February | 4 | 2.4 |
| March | 4 | 3.5 |
| April | 2 | 4.5 |
| May | 3 | 4.4 |
| June | 14 | 4.4 |
| July | 4 | 4 |
| August | 8 | 3.1 |
| September | 1 | 3 |
| October | 0 | 3 |
| November | 3 | 3 |
| December | 0 | 3.1 |
| County | Flood report days | Reports |
|---|---|---|
| Greene County | 29 | 43 |
| Montgomery County | 19 | 49 |
| Miami County | 7 | 9 |
Freezing Nights in Dayton
Dayton averages 107 nights a year at or below 32°F (Dayton Mcd station). About 36 of them drop to 20°F or colder. NOAA counted 12 winter storm, ice or extreme cold days in Greene, Miami and Montgomery counties from 2016 to 2025.
Unheated crawl spaces, attics and garages freeze first (Red Cross); keep the heat at 55°F or more (IBHS).
Storms and Disasters in Dayton
Greene, Miami and Montgomery counties were named in 2 federal weather or fire declarations since 2016 (OpenFEMA).
Notable NOAA storm reports
- May 23, 2026: Flood (Montgomery County)Approximately eight homes near the intersection of Little York Road and Alvira Avenue in Butler Township had high water that intruded into the first floor.
- April 4, 2025: Hail, 3 inch hail (Greene County)Widespread showers and thunderstorms occurred across the region as waves of low pressure moved east along a frontal boundary that was stalled out along the Ohio River.
- June 18, 2021: Flash flood (Greene County)Several roads were flooded in Sugar Creek Township. Engle Mill, Cornstalk, and Cook Roads all had washouts and were impassable.
- May 27, 2019: Tornado, EF4 (Montgomery County)The tornado initially touched down just west of Brookville and areas on the south side of Brookville sustained heavy damage, consistent with high-end EF2 wind speeds.
- April 3, 2018: Thunderstorm wind, 81 mph gust (Greene County)There was widespread tree and roof damage along Wilberforce-Clifton Road and State Route 72 south of Clifton.
Federal disaster declarations
- May 2, 2024: TornadoesTornado, FEMA DR-4777
- June 18, 2019: Severe Storms, Straight-Line Winds, Tornadoes, Flooding, Landslides, And MudslideTornado, FEMA DR-4447
Dayton Housing at a Glance
Census figures for the city of Dayton (American Community Survey, 2020 to 2024): 70,335 housing units, a median build year of 1951, 85% built before 1980, 76% before 1970, 48% owner occupied.
Ohio Insurance Rules for Water Claims
Ohio insurers must acknowledge a claim within 15 days of receiving notice (Ohio Adm. Code 3901-1-54).
Claim problems in Ohio go to the Ohio Department of Insurance.
Flood damage needs a separate flood policy, which typically starts 30 days after purchase (FloodSmart). Look up Dayton flood zones on FEMA's flood maps.
Restoration Cost Guide for Dayton
| Typical range (national) | Cost |
|---|---|
| Most jobs | $1,305 to $5,707 |
| Sewage, per sq ft | $7 to $7.50 |
| Average insurer payout, water or freeze claim | $15,400 |
Sources: Bob Vila, May 2023; III, 2019 to 2023.
Areas Served Around Dayton
The same 24/7 line covers the Dayton metro area, including:
- Dayton
- Kettering
- Beavercreek
- Huber Heights
- Fairborn
- Troy
- Centerville
- Xenia
- Riverside
- Trotwood
- Piqua
- Miamisburg
Other Ohio city guides
Questions
When is the first freeze in Dayton?
The median first night at or below 32°F is October 25 and the median last is April 18 at the Dayton Mcd station (NOAA normals, 1991 to 2020).
How fast does mold start?
Dry wet materials within 24 to 48 hours (EPA).
Sources: NOAA Storm Events, NOAA normals, OpenFEMA, Census ACS, Ohio Adm. Code 3901-1-54, EPA mold guide.