DeLand, FL rainwater: 44,104 gallons off a roof
How much rain a roof in DeLand, FL collects
44,104gallons a year
That is a 1,500 sq ft asphalt roof under DeLand, FL's normal 55.5 inches of rain, about 795 gallons for every inch that falls.
In DeLand, 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 Deland 1 Sse station (1.1 mi away). DeLand, FL ranks 93rd wettest of the 173 cities covered in Florida.
Month by month in DeLand
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 3.07 | 2,440 | |
| Feb | 2.44 | 1,939 | |
| Mar | 3.54 | 2,814 | |
| Apr | 2.47 | 1,963 | 234 |
| May | 4.16 | 3,306 | 24 |
| Jun | 8.20 | 6,517 | |
| Jul | 8.70 | 6,915 | |
| Aug | 7.05 | 5,603 | |
| Sep | 6.91 | 5,492 | |
| Oct | 3.98 | 3,163 | 46 |
| Nov | 2.32 | 1,844 | |
| Dec | 2.65 | 2,106 |
Jul is the wettest month (8.70 in, 6,915 gal off the roof); Nov the driest (2.32 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 DeLand
Best fit: one 55-gallon barrel, which delivers about 250 gallons to the garden in a normal year (82.2% 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 DeLand's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 250 | 42,534 |
| 110 gal | 250 | 42,534 |
| 165 gal | 250 | 42,534 |
| 275 gal | 250 | 42,534 |
| 550 gal | 250 | 42,534 |
| 1,000 gal | 250 | 42,534 |
| 1,500 gal | 250 | 42,534 |
| 2,500 gal | 250 | 42,534 |
| 5,000 gal | 250 | 42,534 |
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