RoofRainYield

Woods Cross, UT rainwater: 17,994 gallons off a roof

Woods Cross, UT: gallons off the roof each year

17,994gallons a year

That is a 1,500 sq ft asphalt roof under Woods Cross, UT's normal 22.6 inches of rain, about 795 gallons for every inch that falls.

Woods Cross, UT has gaps between storms long enough to drain a single barrel. Around 165 gallons of storage catches most of what is worth catching.

Rainfall: NOAA 1991-2020 climate normals, the Bountiful-Val Verda station (1.9 mi away). Woods Cross, UT ranks 12th wettest of the 67 cities covered in Utah.

Month by month in Woods Cross

MonthRain (in)Off the roof (gal)Garden shortfall (gal)
Jan1.991,582
Feb1.911,518
Mar2.301,828
Apr3.312,631130
May2.642,098213
Jun1.331,057377
Jul0.82652440
Aug0.89707431
Sep1.541,224350
Oct2.051,629287
Nov1.901,510
Dec1.961,558

Apr is the wettest month (3.31 in, 2,631 gal off the roof); Jul the driest (0.82 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 Woods Cross

Best fit: 3 linked 55-gallon barrels, which delivers about 1,858 gallons to the garden in a normal year (83.4% 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 gal1,07516,124
110 gal1,60215,598
165 gal1,85815,342
275 gal1,98115,218
550 gal1,98115,218
1,000 gal1,98115,218
1,500 gal1,98115,218
2,500 gal1,98115,218
5,000 gal (over cap)1,98115,218

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