Brook Park, OH rainwater: 32,611 gallons off a roof
Rainwater from a roof in Brook Park, OH
32,611gallons a year
That is a 1,500 sq ft asphalt roof under Brook Park, OH's normal 41.0 inches of rain, about 795 gallons for every inch that falls.
In Brook Park, 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 Cleveland station (2.1 mi away). Brook Park, OH ranks 123rd wettest of the 176 cities covered in Ohio.
Month by month in Brook Park
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 2.99 | 2,376 | |
| Feb | 2.49 | 1,979 | |
| Mar | 3.06 | 2,432 | |
| Apr | 3.75 | 2,981 | 75 |
| May | 3.79 | 3,012 | 70 |
| Jun | 3.83 | 3,044 | 65 |
| Jul | 3.67 | 2,917 | 85 |
| Aug | 3.56 | 2,830 | 98 |
| Sep | 3.93 | 3,124 | 52 |
| Oct | 3.60 | 2,861 | 94 |
| Nov | 3.37 | 2,678 | |
| Dec | 2.99 | 2,376 |
Sep is the wettest month (3.93 in, 3,124 gal off the roof); Feb the driest (2.49 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 Brook Park
Best fit: one 55-gallon barrel, which delivers about 411 gallons to the garden in a normal year (76.3% of its need).
If you set one up, a 55-gallon barrel with a downspout diverter is the whole job. Check that the overflow points away from your foundation, because most of Brook Park's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 411 | 30,850 |
| 110 gal | 411 | 30,850 |
| 165 gal | 411 | 30,850 |
| 275 gal | 411 | 30,850 |
| 550 gal | 411 | 30,850 |
| 1,000 gal | 411 | 30,850 |
| 1,500 gal | 411 | 30,850 |
| 2,500 gal | 411 | 30,850 |
| 5,000 gal | 411 | 30,850 |
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