RoofRainYield

Saratoga Springs, UT rainwater: 10,428 gallons off a roof

How much rain a roof in Saratoga Springs, UT collects

10,428gallons a year

That is a 1,500 sq ft asphalt roof under Saratoga Springs, UT's normal 13.1 inches of rain, about 795 gallons for every inch that falls.

Saratoga Springs, UT has gaps between storms long enough to drain a single barrel. Around 275 gallons of storage catches most of what is worth catching.

Rainfall: NOAA 1991-2020 climate normals, the Utah Lake Lehi station (1.5 mi away). Saratoga Springs, UT ranks 59th wettest of the 67 cities covered in Utah.

Month by month in Saratoga Springs

MonthRain (in)Off the roof (gal)Garden shortfall (gal)
Jan1.21962
Feb1.12890
Mar1.11882
Apr1.601,272343
May1.571,248347
Jun0.64509463
Jul0.67533459
Aug0.95755424
Sep1.07850409
Oct1.17930396
Nov0.94747
Dec1.07850

Apr is the wettest month (1.60 in, 1,272 gal off the roof); Jun the driest (0.64 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 Saratoga Springs

Best fit: a 275-gallon tote or tank, which delivers about 2,517 gallons to the garden in a normal year (88.6% of its need).

If you buy one, link barrels with a short hose at the base so they fill and drain together, and check the overflow points away from the house.

TankWater used (gal/yr)Spills over (gal/yr)
55 gal1,2448,584
110 gal1,9277,901
165 gal2,2447,584
275 gal2,5177,311
550 gal2,5627,266
1,000 gal2,5627,266
1,500 gal2,5627,266
2,500 gal2,5627,266
5,000 gal (over cap)2,5627,266

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 Utah?

Up to 2 covered containers of max 100 gal each with no registration; with free registration at the Utah Division of Water Rights, total storage up to 2,500 gal. Use limited to the same parcel where captured.

Checked against the current source on 2026-11-06. Source