RoofRainYield

Hueytown, AL rainwater: 44,104 gallons off a roof

Hueytown, AL: gallons off the roof each year

44,104gallons a year

That is a 1,500 sq ft asphalt roof under Hueytown, AL's normal 55.5 inches of rain, about 795 gallons for every inch that falls.

In Hueytown, AL 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 Bessemer 3 Wsw station (1.0 mi away). Hueytown, AL ranks 53rd wettest of the 66 cities covered in Alabama.

Month by month in Hueytown

MonthRain (in)Off the roof (gal)Garden shortfall (gal)
Jan5.404,292
Feb5.384,276
Mar5.424,308
Apr5.114,061
May4.553,616
Jun4.533,600
Jul4.763,783
Aug3.983,16346
Sep3.452,742112
Oct3.262,591136
Nov4.453,537
Dec5.204,133

Mar is the wettest month (5.42 in, 4,308 gal off the roof); Oct the driest (3.26 in). Garden shortfall is what a 200 sq ft vegetable bed needs beyond the rain that lands on it, April to October.

Which tank size is worth it in Hueytown

Best fit: one 55-gallon barrel, which delivers about 253 gallons to the garden in a normal year (86.0% 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 Hueytown's roof water will pass straight through it.

TankWater used (gal/yr)Spills over (gal/yr)
55 gal25342,681
110 gal25342,681
165 gal25342,681
275 gal25342,681
550 gal25342,681
1,000 gal25342,681
1,500 gal25342,681
2,500 gal25342,681
5,000 gal25342,681

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 Alabama?

No rainwater harvesting regulations

From the 2015 (Pacific Northwest National Laboratory report 24347); not yet re-checked against current law, so check with your state water agency before building anything large. Source