Heath, OH rainwater: 30,815 gallons off a roof
Heath, OH: gallons off the roof each year
30,815gallons a year
That is a 1,500 sq ft asphalt roof under Heath, OH's normal 38.8 inches of rain, about 795 gallons for every inch that falls.
In Heath, 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 Newark Heath Ap station (1.1 mi away). Heath, OH ranks 148th wettest of the 176 cities covered in Ohio.
Month by month in Heath
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 2.67 | 2,122 | |
| Feb | 2.24 | 1,780 | |
| Mar | 3.40 | 2,702 | |
| Apr | 3.82 | 3,036 | 66 |
| May | 4.08 | 3,243 | 34 |
| Jun | 4.06 | 3,227 | 36 |
| Jul | 3.98 | 3,163 | 46 |
| Aug | 3.39 | 2,694 | 120 |
| Sep | 2.83 | 2,249 | 190 |
| Oct | 2.77 | 2,202 | 197 |
| Nov | 2.69 | 2,138 | |
| Dec | 2.84 | 2,257 |
May is the wettest month (4.08 in, 3,243 gal off the roof); Feb the driest (2.24 in). Garden shortfall is what a 200 sq ft vegetable bed needs beyond the rain that lands on it, April to October.
What size rain barrel for Heath
Best fit: one 55-gallon barrel, which delivers about 538 gallons to the garden in a normal year (78.2% 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 Heath's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 538 | 29,062 |
| 110 gal | 538 | 29,062 |
| 165 gal | 538 | 29,062 |
| 275 gal | 538 | 29,062 |
| 550 gal | 538 | 29,062 |
| 1,000 gal | 538 | 29,062 |
| 1,500 gal | 538 | 29,062 |
| 2,500 gal | 538 | 29,062 |
| 5,000 gal | 538 | 29,062 |
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