Avon, IN rainwater: 35,870 gallons off a roof
How much rain a roof in Avon, IN collects
35,870gallons a year
That is a 1,500 sq ft asphalt roof under Avon, IN's normal 45.1 inches of rain, about 795 gallons for every inch that falls.
In Avon, 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 Brownsburg 4.6 S station (1.1 mi away). Avon, IN ranks 24th wettest of the 88 cities covered in Indiana.
Month by month in Avon
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 3.25 | 2,583 | |
| Feb | 2.61 | 2,074 | |
| Mar | 3.49 | 2,774 | |
| Apr | 4.62 | 3,672 | |
| May | 4.64 | 3,688 | |
| Jun | 5.27 | 4,189 | |
| Jul | 4.60 | 3,656 | |
| Aug | 3.42 | 2,718 | 116 |
| Sep | 3.30 | 2,623 | 131 |
| Oct | 3.34 | 2,655 | 126 |
| Nov | 3.51 | 2,790 | |
| Dec | 3.08 | 2,448 |
Jun is the wettest month (5.27 in, 4,189 gal off the roof); Feb the driest (2.61 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 Avon?
Best fit: one 55-gallon barrel, which delivers about 300 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 Avon's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 300 | 34,324 |
| 110 gal | 300 | 34,324 |
| 165 gal | 300 | 34,324 |
| 275 gal | 300 | 34,324 |
| 550 gal | 300 | 34,324 |
| 1,000 gal | 300 | 34,324 |
| 1,500 gal | 300 | 34,324 |
| 2,500 gal | 300 | 34,324 |
| 5,000 gal | 300 | 34,324 |
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