Why Aldi and Lidl Win When the Weather Gets Messy

by Greg Madison

In the days ahead of a Northeast weather event like the recent Winter Storm Fern, customers tend to do what they always do: pantry loading, staples surges, and a scramble for milk, eggs, bread, and “just-in-case” meals.

Here in Baltimore, Maryland, the “milk-bread-toilet paper” storm shopping list is practically a trope. As for me, I spent some time last Friday morning ferreting out what felt like one of the last remaining gallon jugs of 2% milk in northwest Baltimore County.  

The difference now is the intensity of that “stocking up” shopping behavior. According to CT Insider, ahead of Fern’s arrival, Stew Leonard’s and one other Connecticut chain expected sales would be up 50% versus what they said was a typical weekend, with key staples selling through quickly. That’s the demand spike. 

The operational story is what happens next… when the post-storm week is supposed to “self-correct” and doesn’t. We see some interesting phenomena play out, and some variation between different items and categories. 

Some sold-out products that were depleted in the pre-storm rush will impact sales for the next week; after all, a family that stocked up on toilet paper won’t need it again for several more trips. On the other hand, items like chocolates and snacks don’t necessarily have the same demand dip; demand tends to revert back to normal. 

This is where discounters tend to look unusually strong, uncannily “with-it.” Aldi’s limited-assortment model, (which is often described as roughly 1,350 SKUs in older trade coverage, and commonly framed as 1,500 to 2,000 products in more recent Supermarket News writeups) creates a simple advantage during disruption: There are simply fewer items to chase, fewer forecasts to get wrong, and fewer shelf holes to explain. 

Aldi runs a heavy private-label mix; they claim “more than 90%” of their products are private label. This reduces vendor complexity and keeps replenishment logic tighter.

Despite its operational issues, Lidl is playing a similar game by tightening its assortment. Lidl’s former US CEO has talked publicly about what the company is not trying to be: a 35,000-SKU supermarket. One Grocery Dive profile put the average Lidl U.S. store at about 4,000 SKUs, while more recent reporting points to Lidl cutting core SKUs from roughly 4,500 to 3,250 as part of a simplification push. 

In other words: fewer choices, clearer demand signals, faster recovery.

The discounters’ advantage compounds in storm weeks because promotions and complexity are “shock amplifiers.” This means conventional grocers have to unwind a lot at once: ad items, vendor-funded endcaps, substitutions, delayed deliveries, and labor gaps… all while pickup and delivery volume is rising. 

And digital demand is no longer marginal. Brick Meets Click reported US online grocery sales at $12.3 billion in November 2025, up 29% year over year, driven by more frequent ordering. When storms hit pickup-heavy suburbs, order cancellations and substitutions can muddy the true signal, making it harder to see whether demand softened, or supply simply failed.

It’s not like Aldi and Lidl are on some other planet; they still face weather. They’re just structurally better insulated from it. Their smaller assortments mean trucks and backrooms don’t have to absorb as much volatility, their shelf plans don’t depend on constant promotional resets, and their “core basket” focus makes in-stocks much more achievable when replenishment cycles get choppy.

That’s why they can look like they “handled the week better,” even when everyone faced the same forecast. They didn’t predict the storm more accurately. Rather, they’ve built a system with fewer ways to break.