Why prices are moving
Well below normalWhy are potato prices rising right now?
mostly $18.00 per 50 lb carton FOB, Aug 20, 2026, at the benchmark spec. Broadly flat for 1 week.
Data through Aug 20, 2026 · source last checked Aug 21, 2026 · page revised Aug 21, 2026
Cite
- Comparison midpoint
- USDA mostly / low-high range
About this data
- Source
- USDA AMS shipping point potato FOB reports (FV130)
- Series
- Russet Norkotahs, 70-count 50 lb cartons, Upper Valley Idaho, FOB
- Basis
- FOB shipping point, low-high range
- Geography
- Upper Valley Idaho
- Unit
- $/50 lb carton
- Last observation
- Aug 20, 2026
- Update frequency
- USDA reports on business days, in season
The benchmark (Idaho russet Norkotahs, 70-count 50 lb cartons) is quoted at mostly $18.00 per 50 lb carton and has been broadly flat for 1 week. Idaho shipped 833 units of 10,000 pounds on Aug 19, 2026 (USDA movement). 6 origins are currently quoting FOB prices. The market is in the new-crop transition, when the fall harvest normally resets supply for the storage year.
Potato prices at the benchmark spec have been broadly flat for 1 week, with no sustained move in either direction. For the current picture, see the weekly board.
| Period | Current | Prior | Change |
|---|---|---|---|
| Week over week | $18.00 | $17.00 | +5.9% |
| Month over month | $18.00 | n/a | n/a |
| Year over year | $18.00 | $16.75 | +7.5% |
| vs 5-yr median | $18.00 | $20.00 | -10.0% |
What makes potato prices rise
Fresh potato prices move for structural reasons that repeat every storage year. The fresh market is the price-discovery arena (most fry and chip volume is contracted ahead), there is no futures market smoothing the swings, and the discovery happens in the daily USDA shipping point reports this site tracks. A handful of factors do most of the work when prices rise.
The storage crop is the anchor. The fall harvest, led by Idaho and the Columbia Basin, is dug once and shipped from sheds for the following ten months, so a short crop casts a shadow over the whole marketing year: once the sheds are light, there is no second harvest until the next fall.
Grade-out decides how much of the crop is actually sellable. Storage potatoes are graded as they ship, and a season with heavy grade-out, from field stress or storage breakdown, shrinks the cartons available faster than the raw crop number suggests. The premium sizes thin out first, which shows up directly in the carton-count spread.
The count spread is the early warning. A 50 lb carton is graded by count (40- to 100-count, lower is bigger), and when the big-potato counts pull away from the small ones, the market is telling you the size profile of the remaining supply is deteriorating; broad rallies often start as count-spread rallies.
The late-storage squeeze is the calendar's built-in pressure point. Between the last of the old crop and the first new-crop shipments, supply passes through its narrowest window, and the benchmark often firms into early summer as sheds empty. The weekly board shows which districts are still quoting through it.
Demand is steady, so supply does the moving. Potatoes are a staple with little demand response; a processing sector bidding for open supply in a short year adds a second buyer for the same cartons, and the fresh price carries the competition.
Weather does its damage months before it shows up. Heat at bulking, an early freeze at harvest, or a wet dig that hurts storability sets the supply the market lives with all year; by the time prices rise, the cause is usually already in the sheds.
None of these act alone. A rising stretch usually starts with a short or troubled storage crop, with grade-out, the count spread and the transition calendar deciding how sharp it gets. The falling twin of this page covers the same factors running in reverse.