RoofRainYield

Endicott, NY rainwater: 33,684 gallons off a roof

Endicott, NY: gallons off the roof each year

33,684gallons a year

That is a 1,500 sq ft asphalt roof under Endicott, NY's normal 42.4 inches of rain, about 795 gallons for every inch that falls.

In Endicott, NY 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 Vestal 2.8 Sse station (3.8 mi away). Endicott, NY ranks 67th wettest of the 90 cities covered in New York.

Month by month in Endicott

MonthRain (in)Off the roof (gal)Garden shortfall (gal)
Jan2.882,289
Feb2.461,955
Mar3.282,607
Apr3.632,88590
May3.823,03666
Jun3.712,94980
Jul4.193,33020
Aug3.913,10855
Sep4.313,4265
Oct4.143,29026
Nov3.032,408
Dec3.022,400

Sep is the wettest month (4.31 in, 3,426 gal off the roof); Feb the driest (2.46 in). Garden shortfall is what a 200 sq ft vegetable bed needs beyond the rain that lands on it, April to October.

What size rain barrel for Endicott

Best fit: one 55-gallon barrel, which delivers about 255 gallons to the garden in a normal year (74.6% 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 Endicott's roof water will pass straight through it.

TankWater used (gal/yr)Spills over (gal/yr)
55 gal25532,154
110 gal25532,154
165 gal25532,154
275 gal25532,154
550 gal25532,154
1,000 gal25532,154
1,500 gal25532,154
2,500 gal25532,154
5,000 gal25532,154

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 New York?

No statewide rainwater harvesting regulations; check county for local incentives

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