Tamarac, FL rainwater: 44,906 gallons off a roof
Rainwater from a roof in Tamarac, FL
44,906gallons a year
That is a 1,500 sq ft asphalt roof under Tamarac, FL's normal 56.5 inches of rain, about 795 gallons for every inch that falls.
In Tamarac, 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 Ft Lauderdale Executive Ap station (5.3 mi away). Tamarac, FL ranks 74th wettest of the 173 cities covered in Florida.
Month by month in Tamarac
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 2.38 | 1,892 | |
| Feb | 1.95 | 1,550 | |
| Mar | 3.20 | 2,543 | |
| Apr | 3.11 | 2,472 | 155 |
| May | 4.89 | 3,887 | |
| Jun | 6.57 | 5,222 | |
| Jul | 6.15 | 4,888 | |
| Aug | 7.51 | 5,969 | |
| Sep | 8.13 | 6,462 | |
| Oct | 5.82 | 4,626 | |
| Nov | 4.00 | 3,179 | |
| Dec | 2.79 | 2,218 |
Sep is the wettest month (8.13 in, 6,462 gal off the roof); Feb the driest (1.95 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 Tamarac?
Best fit: one 55-gallon barrel, which delivers about 134 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 Tamarac's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 134 | 43,603 |
| 110 gal | 134 | 43,603 |
| 165 gal | 134 | 43,603 |
| 275 gal | 134 | 43,603 |
| 550 gal | 134 | 43,603 |
| 1,000 gal | 134 | 43,603 |
| 1,500 gal | 134 | 43,603 |
| 2,500 gal | 134 | 43,603 |
| 5,000 gal | 134 | 43,603 |
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