Auburndale, FL rainwater: 42,188 gallons off a roof
How much rain a roof in Auburndale, FL collects
42,188gallons a year
That is a 1,500 sq ft asphalt roof under Auburndale, FL's normal 53.1 inches of rain, about 795 gallons for every inch that falls.
In Auburndale, FL 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 Auburndale 1.7 Nw station (1.8 mi away). Auburndale, FL ranks 131st wettest of the 173 cities covered in Florida.
Month by month in Auburndale
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 2.78 | 2,210 | |
| Feb | 2.33 | 1,852 | |
| Mar | 3.22 | 2,559 | |
| Apr | 2.74 | 2,178 | 201 |
| May | 3.46 | 2,750 | 111 |
| Jun | 8.43 | 6,700 | |
| Jul | 8.00 | 6,358 | |
| Aug | 7.92 | 6,295 | |
| Sep | 6.56 | 5,214 | |
| Oct | 3.15 | 2,504 | 150 |
| Nov | 1.77 | 1,407 | |
| Dec | 2.72 | 2,162 |
Jun is the wettest month (8.43 in, 6,700 gal off the roof); Nov the driest (1.77 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 Auburndale
Best fit: one 55-gallon barrel, which delivers about 397 gallons to the garden in a normal year (86.1% 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 Auburndale's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 397 | 40,666 |
| 110 gal | 397 | 40,666 |
| 165 gal | 397 | 40,666 |
| 275 gal | 397 | 40,666 |
| 550 gal | 397 | 40,666 |
| 1,000 gal | 397 | 40,666 |
| 1,500 gal | 397 | 40,666 |
| 2,500 gal | 397 | 40,666 |
| 5,000 gal | 397 | 40,666 |
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 Florida?
Legal. Florida approves onsite non-potable use of rainwater for landscape irrigation, vehicle washing, filling pools and fountains and, in some local jurisdictions, toilet/urinal flushing (Florida Plumbing Code). No state storage cap or registration for non-potable collection.
Checked against the current source on 2026-11-06. Source