Pickerington, OH rainwater: 34,439 gallons off a roof
Pickerington, OH: gallons off the roof each year
34,439gallons a year
That is a 1,500 sq ft asphalt roof under Pickerington, OH's normal 43.3 inches of rain, about 795 gallons for every inch that falls.
In Pickerington, 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 Pickerington 2.7 Nne station (2.8 mi away). Pickerington, OH ranks 51st wettest of the 176 cities covered in Ohio.
Month by month in Pickerington
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 3.15 | 2,504 | |
| Feb | 2.38 | 1,892 | |
| Mar | 3.60 | 2,861 | |
| Apr | 4.02 | 3,195 | 41 |
| May | 4.23 | 3,362 | 15 |
| Jun | 4.64 | 3,688 | |
| Jul | 5.28 | 4,197 | |
| Aug | 3.54 | 2,814 | 101 |
| Sep | 3.41 | 2,710 | 117 |
| Oct | 2.87 | 2,281 | 185 |
| Nov | 2.98 | 2,369 | |
| Dec | 3.23 | 2,567 |
Jul is the wettest month (5.28 in, 4,197 gal off the roof); Feb the driest (2.38 in). Garden shortfall is what a 200 sq ft vegetable bed needs beyond the rain that lands on it, April to October.
Which tank size is worth it in Pickerington
Best fit: one 55-gallon barrel, which delivers about 371 gallons to the garden in a normal year (80.9% 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 Pickerington's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 371 | 32,883 |
| 110 gal | 371 | 32,883 |
| 165 gal | 371 | 32,883 |
| 275 gal | 371 | 32,883 |
| 550 gal | 371 | 32,883 |
| 1,000 gal | 371 | 32,883 |
| 1,500 gal | 371 | 32,883 |
| 2,500 gal | 371 | 32,883 |
| 5,000 gal | 371 | 32,883 |
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