Kingsland, GA rainwater: 43,380 gallons off a roof
Rainwater from a roof in Kingsland, GA
43,380gallons a year
That is a 1,500 sq ft asphalt roof under Kingsland, GA's normal 54.6 inches of rain, about 795 gallons for every inch that falls.
In Kingsland, 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 Woodbine station (9.3 mi away). Kingsland, GA ranks 20th wettest of the 101 cities covered in Georgia.
Month by month in Kingsland
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 3.61 | 2,869 | |
| Feb | 3.67 | 2,917 | |
| Mar | 3.58 | 2,845 | |
| Apr | 3.52 | 2,798 | 103 |
| May | 3.92 | 3,116 | 54 |
| Jun | 6.20 | 4,928 | |
| Jul | 5.51 | 4,379 | |
| Aug | 7.76 | 6,168 | |
| Sep | 6.70 | 5,325 | |
| Oct | 4.74 | 3,767 | |
| Nov | 2.33 | 1,852 | |
| Dec | 3.04 | 2,416 |
Aug is the wettest month (7.76 in, 6,168 gal off the roof); Nov the driest (2.33 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 Kingsland
Best fit: one 55-gallon barrel, which delivers about 131 gallons to the garden in a normal year (83.4% of its need).
If you set one up, a 55-gallon barrel with a downspout diverter is the whole job. Check that the overflow points away from your foundation, because most of Kingsland's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 131 | 42,094 |
| 110 gal | 131 | 42,094 |
| 165 gal | 131 | 42,094 |
| 275 gal | 131 | 42,094 |
| 550 gal | 131 | 42,094 |
| 1,000 gal | 131 | 42,094 |
| 1,500 gal | 131 | 42,094 |
| 2,500 gal | 131 | 42,094 |
| 5,000 gal | 131 | 42,094 |
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