Pataskala, OH rainwater: 35,273 gallons off a roof
Rainwater from a roof in Pataskala, OH
35,273gallons a year
That is a 1,500 sq ft asphalt roof under Pataskala, OH's normal 44.4 inches of rain, about 795 gallons for every inch that falls.
In Pataskala, 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 New Albany 2.8 Sse station (4.4 mi away). Pataskala, OH ranks 20th wettest of the 176 cities covered in Ohio.
Month by month in Pataskala
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 3.16 | 2,512 | |
| Feb | 2.28 | 1,812 | |
| Mar | 3.65 | 2,901 | |
| Apr | 4.07 | 3,235 | 35 |
| May | 4.36 | 3,465 | |
| Jun | 4.62 | 3,672 | |
| Jul | 5.61 | 4,459 | |
| Aug | 3.73 | 2,965 | 77 |
| Sep | 3.26 | 2,591 | 136 |
| Oct | 3.22 | 2,559 | 141 |
| Nov | 2.99 | 2,376 | |
| Dec | 3.43 | 2,726 |
Jul is the wettest month (5.61 in, 4,459 gal off the roof); Feb the driest (2.28 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 Pataskala?
Best fit: one 55-gallon barrel, which delivers about 302 gallons to the garden in a normal year (77.6% of its need).
Before you buy, a 55-gallon barrel with a downspout diverter is the whole job. Check that the overflow points away from your foundation, because most of Pataskala's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 302 | 33,606 |
| 110 gal | 302 | 33,606 |
| 165 gal | 302 | 33,606 |
| 275 gal | 302 | 33,606 |
| 550 gal | 302 | 33,606 |
| 1,000 gal | 302 | 33,606 |
| 1,500 gal | 302 | 33,606 |
| 2,500 gal | 302 | 33,606 |
| 5,000 gal | 302 | 33,606 |
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