RoofRainYield

Neosho, MO rainwater: 39,708 gallons off a roof

How much rain a roof in Neosho, MO collects

39,708gallons a year

That is a 1,500 sq ft asphalt roof under Neosho, MO's normal 50.0 inches of rain, about 795 gallons for every inch that falls.

In Neosho, MO 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 Neosho station (1.6 mi away). Neosho, MO ranks 4th wettest of the 80 cities covered in Missouri.

Month by month in Neosho

MonthRain (in)Off the roof (gal)Garden shortfall (gal)
Jan2.552,027
Feb2.411,915
Mar3.702,941
Apr5.314,220
May6.745,357
Jun5.704,530
Jul4.203,33819
Aug3.652,90187
Sep4.993,966
Oct4.143,29026
Nov3.702,941
Dec2.872,281

May is the wettest month (6.74 in, 5,357 gal off the roof); Feb the driest (2.41 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 Neosho?

Best fit: one 55-gallon barrel, which delivers about 109 gallons to the garden in a normal year (82.5% of its need).

Before you buy, a 55-gallon barrel with a downspout diverter is the whole job. Check that the overflow points away from your foundation, because most of Neosho's roof water will pass straight through it.

TankWater used (gal/yr)Spills over (gal/yr)
55 gal10938,564
110 gal10938,564
165 gal10938,564
275 gal10938,564
550 gal10938,564
1,000 gal10938,564
1,500 gal10938,564
2,500 gal10938,564
5,000 gal10938,564

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 Missouri?

No rainwater harvesting regulations

From the 2015 (Pacific Northwest National Laboratory report 24347); not yet re-checked against current law, so check with your state water agency before building anything large. Source