Mooresville, IN rainwater: 35,734 gallons off a roof
Rainwater from a roof in Mooresville, IN
35,734gallons a year
That is a 1,500 sq ft asphalt roof under Mooresville, IN's normal 45.0 inches of rain, about 795 gallons for every inch that falls.
In Mooresville, IN 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 Mooresville 3.8 Ne station (1.8 mi away). Mooresville, IN ranks 26th wettest of the 88 cities covered in Indiana.
Month by month in Mooresville
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 3.24 | 2,575 | |
| Feb | 2.49 | 1,979 | |
| Mar | 3.61 | 2,869 | |
| Apr | 4.83 | 3,839 | |
| May | 4.75 | 3,775 | |
| Jun | 5.16 | 4,101 | |
| Jul | 4.41 | 3,505 | |
| Aug | 3.29 | 2,615 | 132 |
| Sep | 3.27 | 2,599 | 135 |
| Oct | 3.38 | 2,686 | 121 |
| Nov | 3.51 | 2,790 | |
| Dec | 3.02 | 2,400 |
Jun is the wettest month (5.16 in, 4,101 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.
Barrel or cistern in Mooresville?
Best fit: one 55-gallon barrel, which delivers about 312 gallons to the garden in a normal year (80.5% 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 Mooresville's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 312 | 34,177 |
| 110 gal | 312 | 34,177 |
| 165 gal | 312 | 34,177 |
| 275 gal | 312 | 34,177 |
| 550 gal | 312 | 34,177 |
| 1,000 gal | 312 | 34,177 |
| 1,500 gal | 312 | 34,177 |
| 2,500 gal | 312 | 34,177 |
| 5,000 gal | 312 | 34,177 |
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 Indiana?
No statewide rainwater harvesting regulations; check county for local incentives
From the 2015 (Pacific Northwest National Laboratory report 24347); not yet re-checked against current law, so check with your state water agency before building anything large. Source