Yukon, OK rainwater: 24,416 gallons off a roof
Yukon, OK: gallons off the roof each year
24,416gallons a year
That is a 1,500 sq ft asphalt roof under Yukon, OK's normal 30.7 inches of rain, about 795 gallons for every inch that falls.
In Yukon, OK 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 Oklahoma City Post Ap station (6.8 mi away). Yukon, OK ranks 39th wettest of the 45 cities covered in Oklahoma.
Month by month in Yukon
| Month | Rain (in) | Off the roof (gal) | Garden shortfall (gal) |
|---|---|---|---|
| Jan | 0.78 | 620 | |
| Feb | 0.98 | 779 | |
| Mar | 2.04 | 1,621 | |
| Apr | 3.00 | 2,384 | 168 |
| May | 4.26 | 3,386 | 11 |
| Jun | 4.83 | 3,839 | |
| Jul | 2.88 | 2,289 | 183 |
| Aug | 3.49 | 2,774 | 107 |
| Sep | 3.00 | 2,384 | 168 |
| Oct | 2.72 | 2,162 | 203 |
| Nov | 1.47 | 1,168 | |
| Dec | 1.27 | 1,009 |
Jun is the wettest month (4.83 in, 3,839 gal off the roof); Jan the driest (0.78 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 Yukon
Best fit: one 55-gallon barrel, which delivers about 727 gallons to the garden in a normal year (86.4% 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 Yukon's roof water will pass straight through it.
| Tank | Water used (gal/yr) | Spills over (gal/yr) |
|---|---|---|
| 55 gal | 727 | 23,029 |
| 110 gal | 727 | 23,029 |
| 165 gal | 727 | 23,029 |
| 275 gal | 727 | 23,029 |
| 550 gal | 727 | 23,029 |
| 1,000 gal | 727 | 23,029 |
| 1,500 gal | 727 | 23,029 |
| 2,500 gal | 727 | 23,029 |
| 5,000 gal | 727 | 23,029 |
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 Oklahoma?
Encouraged through state legislation: Water for 2060 Act
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