Hinesville, GA rainwater: 40,567 gallons off a roof
Hinesville, GA: gallons off the roof each year
40,567gallons a year
That is a 1,500 sq ft asphalt roof under Hinesville, GA's normal 51.0 inches of rain, about 795 gallons for every inch that falls.
In Hinesville, 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 Ft Stewart station (3.3 mi away). Hinesville, GA ranks 75th wettest of the 101 cities covered in Georgia.
Month by month in Hinesville
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 3.72 | 2,957 | |
| Feb | 3.33 | 2,647 | |
| Mar | 3.63 | 2,885 | |
| Apr | 3.25 | 2,583 | 137 |
| May | 3.31 | 2,631 | 130 |
| Jun | 6.67 | 5,301 | |
| Jul | 5.71 | 4,538 | |
| Aug | 6.61 | 5,254 | |
| Sep | 3.94 | 3,132 | 51 |
| Oct | 4.73 | 3,759 | |
| Nov | 2.57 | 2,043 | |
| Dec | 3.57 | 2,837 |
Jun is the wettest month (6.67 in, 5,301 gal off the roof); Nov the driest (2.57 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 Hinesville
Best fit: one 55-gallon barrel, which delivers about 260 gallons to the garden in a normal year (81.8% 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 Hinesville's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 260 | 39,167 |
| 110 gal | 260 | 39,167 |
| 165 gal | 260 | 39,167 |
| 275 gal | 260 | 39,167 |
| 550 gal | 260 | 39,167 |
| 1,000 gal | 260 | 39,167 |
| 1,500 gal | 260 | 39,167 |
| 2,500 gal | 260 | 39,167 |
| 5,000 gal | 260 | 39,167 |
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