Dalton, GA rainwater: 39,367 gallons off a roof
How much rain a roof in Dalton, GA collects
39,367gallons a year
That is a 1,500 sq ft asphalt roof under Dalton, GA's normal 49.5 inches of rain, about 795 gallons for every inch that falls.
In Dalton, 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 Ringgold 2 Se station (10.6 mi away). Dalton, GA ranks 88th wettest of the 101 cities covered in Georgia.
Month by month in Dalton
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 4.78 | 3,799 | |
| Feb | 4.81 | 3,823 | |
| Mar | 4.90 | 3,895 | |
| Apr | 3.58 | 2,845 | 96 |
| May | 3.95 | 3,139 | 50 |
| Jun | 4.35 | 3,457 | |
| Jul | 3.66 | 2,909 | 86 |
| Aug | 3.30 | 2,623 | 131 |
| Sep | 3.98 | 3,163 | 46 |
| Oct | 3.17 | 2,520 | 147 |
| Nov | 4.11 | 3,267 | |
| Dec | 4.94 | 3,926 |
Dec is the wettest month (4.94 in, 3,926 gal off the roof); Oct the driest (3.17 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 Dalton?
Best fit: one 55-gallon barrel, which delivers about 456 gallons to the garden in a normal year (82.0% 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 Dalton's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 456 | 37,831 |
| 110 gal | 456 | 37,831 |
| 165 gal | 456 | 37,831 |
| 275 gal | 456 | 37,831 |
| 550 gal | 456 | 37,831 |
| 1,000 gal | 456 | 37,831 |
| 1,500 gal | 456 | 37,831 |
| 2,500 gal | 456 | 37,831 |
| 5,000 gal | 456 | 37,831 |
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