Pooler, GA rainwater: 40,678 gallons off a roof
Pooler, GA: gallons off the roof each year
40,678gallons a year
That is a 1,500 sq ft asphalt roof under Pooler, GA's normal 51.2 inches of rain, about 795 gallons for every inch that falls.
In Pooler, 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 Pooler 1.2 Nne station (1.1 mi away). Pooler, GA ranks 69th wettest of the 101 cities covered in Georgia.
Month by month in Pooler
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 3.69 | 2,933 | |
| Feb | 3.34 | 2,655 | |
| Mar | 4.02 | 3,195 | |
| Apr | 3.64 | 2,893 | 89 |
| May | 3.63 | 2,885 | 90 |
| Jun | 6.58 | 5,230 | |
| Jul | 5.33 | 4,236 | |
| Aug | 6.27 | 4,983 | |
| Sep | 4.44 | 3,529 | |
| Oct | 3.60 | 2,861 | 94 |
| Nov | 3.00 | 2,384 | |
| Dec | 3.64 | 2,893 |
Jun is the wettest month (6.58 in, 5,230 gal off the roof); Nov the driest (3.00 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 Pooler
Best fit: one 55-gallon barrel, which delivers about 233 gallons to the garden in a normal year (85.7% 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 Pooler's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 233 | 39,380 |
| 110 gal | 233 | 39,380 |
| 165 gal | 233 | 39,380 |
| 275 gal | 233 | 39,380 |
| 550 gal | 233 | 39,380 |
| 1,000 gal | 233 | 39,380 |
| 1,500 gal | 233 | 39,380 |
| 2,500 gal | 233 | 39,380 |
| 5,000 gal | 233 | 39,380 |
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