Coshocton, OH rainwater: 34,622 gallons off a roof
How much rain a roof in Coshocton, OH collects
34,622gallons a year
That is a 1,500 sq ft asphalt roof under Coshocton, OH's normal 43.6 inches of rain, about 795 gallons for every inch that falls.
In Coshocton, OH a single barrel does most of the work. Storms come often enough that a small tank refills before it runs dry, and a bigger one would mostly sit full.
Rainfall: NOAA 1991-2020 climate normals, the Coshocton Wpc Plt station (1.9 mi away). Coshocton, OH ranks 38th wettest of the 176 cities covered in Ohio.
Month by month in Coshocton
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 3.15 | 2,504 | |
| Feb | 2.55 | 2,027 | |
| Mar | 3.71 | 2,949 | |
| Apr | 4.15 | 3,298 | 25 |
| May | 4.32 | 3,434 | 4 |
| Jun | 4.71 | 3,744 | |
| Jul | 4.23 | 3,362 | 15 |
| Aug | 4.20 | 3,338 | 19 |
| Sep | 3.17 | 2,520 | 147 |
| Oct | 3.10 | 2,464 | 156 |
| Nov | 3.10 | 2,464 | |
| Dec | 3.17 | 2,520 |
Jun is the wettest month (4.71 in, 3,744 gal off the roof); Feb the driest (2.55 in). Garden shortfall is what a 200 sq ft vegetable bed needs beyond the rain that lands on it, April to October.
Barrel or cistern in Coshocton?
Best fit: one 55-gallon barrel, which delivers about 285 gallons to the garden in a normal year (78.0% of its need).
If you buy one, a 55-gallon barrel with a downspout diverter is the whole job. Check that the overflow points away from your foundation, because most of Coshocton's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 285 | 33,032 |
| 110 gal | 285 | 33,032 |
| 165 gal | 285 | 33,032 |
| 275 gal | 285 | 33,032 |
| 550 gal | 285 | 33,032 |
| 1,000 gal | 285 | 33,032 |
| 1,500 gal | 285 | 33,032 |
| 2,500 gal | 285 | 33,032 |
| 5,000 gal | 285 | 33,032 |
Simulated storm by storm through a normal year using the station's count of days with 0.1 in or more of rain each month.
Is rainwater collection legal in Ohio?
Legal. Ohio regulates rainwater cisterns used as a drinking-water source as private water systems (OAC chapter 3701-28): local health department permit, continuous disinfection and filtration. No state rule restricting non-potable collection or storage size.
Checked against the current source on 2026-11-06. Source