Rincon, GA rainwater: 39,454 gallons off a roof
Rainwater from a roof in Rincon, GA
39,454gallons a year
That is a 1,500 sq ft asphalt roof under Rincon, GA's normal 49.6 inches of rain, about 795 gallons for every inch that falls.
In Rincon, GA 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 Rincon 5.3 Nne station (5.1 mi away). Rincon, GA ranks 87th wettest of the 101 cities covered in Georgia.
Month by month in Rincon
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 3.56 | 2,830 | |
| Feb | 3.41 | 2,710 | |
| Mar | 3.95 | 3,139 | |
| Apr | 3.65 | 2,901 | 87 |
| May | 3.34 | 2,655 | 126 |
| Jun | 6.04 | 4,801 | |
| Jul | 5.47 | 4,348 | |
| Aug | 5.63 | 4,475 | |
| Sep | 4.85 | 3,855 | |
| Oct | 3.83 | 3,044 | 65 |
| Nov | 2.43 | 1,931 | |
| Dec | 3.48 | 2,766 |
Jun is the wettest month (6.04 in, 4,801 gal off the roof); Nov the driest (2.43 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 Rincon
Best fit: one 55-gallon barrel, which delivers about 235 gallons to the garden in a normal year (84.5% 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 Rincon's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 235 | 38,169 |
| 110 gal | 235 | 38,169 |
| 165 gal | 235 | 38,169 |
| 275 gal | 235 | 38,169 |
| 550 gal | 235 | 38,169 |
| 1,000 gal | 235 | 38,169 |
| 1,500 gal | 235 | 38,169 |
| 2,500 gal | 235 | 38,169 |
| 5,000 gal | 235 | 38,169 |
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 Georgia?
Legal. Outdoor irrigation use is unrestricted; indoor non-potable systems must follow Appendix I 'Rainwater Recycling Systems' of the Georgia amendments to the state plumbing code. No state storage cap; potable use depends on local rules.
Checked against the current source on 2026-11-06. Source