Oneida, NY rainwater: 36,625 gallons off a roof
Oneida, NY: gallons off the roof each year
36,625gallons a year
That is a 1,500 sq ft asphalt roof under Oneida, NY's normal 46.1 inches of rain, about 795 gallons for every inch that falls.
In Oneida, 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 Oneida 0.4 Nw station (0.7 mi away). Oneida, NY ranks 49th wettest of the 90 cities covered in New York.
Month by month in Oneida
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 2.87 | 2,281 | |
| Feb | 3.08 | 2,448 | |
| Mar | 3.38 | 2,686 | |
| Apr | 3.65 | 2,901 | 87 |
| May | 4.28 | 3,402 | 9 |
| Jun | 4.35 | 3,457 | |
| Jul | 5.27 | 4,189 | |
| Aug | 4.07 | 3,235 | 35 |
| Sep | 4.03 | 3,203 | 40 |
| Oct | 4.22 | 3,354 | 16 |
| Nov | 3.37 | 2,678 | |
| Dec | 3.51 | 2,790 |
Jul is the wettest month (5.27 in, 4,189 gal off the roof); Jan the driest (2.87 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 Oneida
Best fit: one 55-gallon barrel, which delivers about 129 gallons to the garden in a normal year (69.0% of its need).
If you set one up, a 55-gallon barrel with a downspout diverter is the whole job. Check that the overflow points away from your foundation, because most of Oneida's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 129 | 34,801 |
| 110 gal | 129 | 34,801 |
| 165 gal | 129 | 34,801 |
| 275 gal | 129 | 34,801 |
| 550 gal | 129 | 34,801 |
| 1,000 gal | 129 | 34,801 |
| 1,500 gal | 129 | 34,801 |
| 2,500 gal | 129 | 34,801 |
| 5,000 gal | 129 | 34,801 |
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