Albany, GA rainwater: 37,062 gallons off a roof
Rainwater from a roof in Albany, GA
37,062gallons a year
That is a 1,500 sq ft asphalt roof under Albany, GA's normal 46.6 inches of rain, about 795 gallons for every inch that falls.
In Albany, 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 Albany Sw Ga Rgnl Ap station (3.1 mi away). Albany, GA ranks 100th wettest of the 101 cities covered in Georgia.
Month by month in Albany
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 4.19 | 3,330 | |
| Feb | 4.01 | 3,187 | |
| Mar | 4.38 | 3,481 | |
| Apr | 3.67 | 2,917 | 85 |
| May | 2.41 | 1,915 | 242 |
| Jun | 5.06 | 4,022 | |
| Jul | 5.12 | 4,069 | |
| Aug | 4.83 | 3,839 | |
| Sep | 3.37 | 2,678 | 122 |
| Oct | 2.30 | 1,828 | 256 |
| Nov | 2.94 | 2,337 | |
| Dec | 4.35 | 3,457 |
Jul is the wettest month (5.12 in, 4,069 gal off the roof); Oct the driest (2.30 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 Albany?
Best fit: one 55-gallon barrel, which delivers about 568 gallons to the garden in a normal year (80.6% of its need).
Before you buy, a 55-gallon barrel with a downspout diverter is the whole job. Check that the overflow points away from your foundation, because most of Albany's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 568 | 35,504 |
| 110 gal | 606 | 35,466 |
| 165 gal | 606 | 35,466 |
| 275 gal | 606 | 35,466 |
| 550 gal | 606 | 35,466 |
| 1,000 gal | 606 | 35,466 |
| 1,500 gal | 606 | 35,466 |
| 2,500 gal | 606 | 35,466 |
| 5,000 gal | 606 | 35,466 |
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