Deerfield Beach, FL rainwater: 51,790 gallons off a roof
Rainwater from a roof in Deerfield Beach, FL
51,790gallons a year
That is a 1,500 sq ft asphalt roof under Deerfield Beach, FL's normal 65.2 inches of rain, about 795 gallons for every inch that falls.
In Deerfield Beach, 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 Pompano Beach Highlands 0.7 E station (2.3 mi away). Deerfield Beach, FL ranks 34th wettest of the 173 cities covered in Florida.
Month by month in Deerfield Beach
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 2.85 | 2,265 | |
| Feb | 2.79 | 2,218 | |
| Mar | 3.27 | 2,599 | |
| Apr | 3.73 | 2,965 | 77 |
| May | 5.66 | 4,499 | |
| Jun | 9.66 | 7,678 | |
| Jul | 6.02 | 4,785 | |
| Aug | 8.44 | 6,708 | |
| Sep | 8.61 | 6,843 | |
| Oct | 6.91 | 5,492 | |
| Nov | 3.82 | 3,036 | |
| Dec | 3.40 | 2,702 |
Jun is the wettest month (9.66 in, 7,678 gal off the roof); Feb the driest (2.79 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 Deerfield Beach
Best fit: one 55-gallon barrel, which delivers about 67 gallons to the garden in a normal year (86.7% 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 Deerfield Beach's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 67 | 50,538 |
| 110 gal | 67 | 50,538 |
| 165 gal | 67 | 50,538 |
| 275 gal | 67 | 50,538 |
| 550 gal | 67 | 50,538 |
| 1,000 gal | 67 | 50,538 |
| 1,500 gal | 67 | 50,538 |
| 2,500 gal | 67 | 50,538 |
| 5,000 gal | 67 | 50,538 |
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