WASHINGTON >> Propelled by surging costs for gas, food and housing, consumer inflation jumped 7.9% over the past year, the sharpest spike since 1982 and likely only a harbinger of even higher prices to come.

The increase reported today by the Labor Department reflected the 12 months ending in February and didn’t include the oil and gas price surges that followed Russia’s invasion of Ukraine on Feb. 24. Since then, average gas prices nationally have jumped about 62 cents a gallon to $4.32, according to AAA.

Even before the war further accelerated price increases, robust consumer spending, solid pay raises and persistent supply shortages had sent U.S. inflation to its highest level in four decades. What’s more, housing costs, which make up about a third of the government’s consumer price index, have risen sharply, a trend that’s unlikely to reverse anytime soon.

“The numbers are eye-watering, and there is more to come,” said Eric Winograd, senior economist at asset management firm AllianceBernstein. “The peak in inflation will be much higher than previously thought and will arrive later than previously expected.”

The government’s report today showed that from January to February, inflation rose 0.8%, up from a 0.6% increase from December to January. Excluding the volatile food and energy categories, so-called core prices rose a sharp 0.5% month to month and 6.4% from a year earlier. Economists tend to monitor core prices because they more closely reflect longer-running inflation trends.

For most Americans, inflation is running far ahead of the pay raises that many have received in the past year, making it harder for them to afford necessities like food, gas and rent. As a consequence, inflation has become the top political threat to President Joe Biden and congressional Democrats as the midterm elections draw closer. Small business people say in surveys that it’s their primary economic concern, too.

Seeking to stem the inflation surge, the Federal Reserve is set to raise interest rates several times this year, beginning with a quarter-point hike next week. The Fed faces a delicate challenge, though: If it tightens credit too aggressively this year, it risks undercutting the economy and possibly triggering a recession.

From January to February, nearly every category of goods and services got pricier. Grocery costs jumped 1.4%, the sharpest one-month increase since 1990, other than during a pandemic-induced price surge two years ago. The collective price of fruits and vegetables rose 2.3%, the largest monthly increase since 2010. Gas prices spiked 6.6%, clothing 0.7%.

For the 12 months ending in February, grocery prices leapt 8.6%, the biggest year-over-year increase since 1981, the government said. Gas prices are up a whopping 38%. And housing costs have risen 4.7%, the largest yearly jump since 1991.

Across the country, individual Americans as well as companies are struggling with the inflation spike and trying to minimize its impact. In San Jose, California, Maurice Brewster, the founder of Mosaic Global Transportation, a limousine and transportation company with nearly 100 vehicles, has been hammered by gas prices. A couple of months ago, Brewster had been paying $4 a gallon. On Monday, the price was $6.39.

“Inflation has been a killer,” he said. “I feel it every day.”

A major part of Brewster’s business is shuttling workers from San Francisco to Silicon Valley companies such as Google, Meta (formerly known as Facebook) and Merck. Gas costs are built into those contracts, and Brewster is now passing on the higher prices.

Brewster also rents limos to consumers for weddings, wine tours and other functions, and that business has boomed as pandemic restrictions have eased. He plans to add a 10% fuel surcharge for consumer rentals and is praying that his customers will pay it.

“I’m anticipating that it will not stop them from still wanting to get out and having a good time,” he said. “I hope I’m not wrong.”

Energy prices, which soared after Russia’s invasion of Ukraine, jumped again this week after Biden said the United States would bar oil imports from Russia. Oil prices did retreat Wednesday on reports that the United Arab Emirates will urge fellow OPEC members to boost production. But they rose again Thursday in morning trading.

The Biden White House has attributed much of the inflation surge to the ability of a few corporate giants to dominate industries and squeeze out competition that would otherwise lower prices. The administration argues that meat prices, for example, are higher because four meat-packing firms control the industry.

In his State of the Union address last week, Biden asserted that the U.S. should manufacture more goods at home, rather than overseas, to avoid the supply chain backups that are bedeviling many companies. Yet producing more competition or more home-grown products would take time and wouldn’t reduce inflation anytime soon.

Republicans in Congress and many economists say the Biden administration’s $1.9 trillion financial rescue package, which distributed stimulus checks and enhanced unemployment benefits to tens of millions of households after the pandemic struck, contributed to high inflation by accelerating consumer spending.

But the economic consequences of Russia’s war against Ukraine have upended a broad assumption among many economists and at the Fed: That inflation would begin to ease this spring because prices rose so much in March and April of 2021 that comparisons to a year ago would show declines. That won’t likely happen. Should gas prices remain near their current levels, Winograd estimates that inflation could reach as high as 9% in March or April.

Laura Rosner-Warburton, senior economist at MacroPolicy Perspectives, suggested that a key question in coming months will be whether higher gas costs seep into the broader economy by escalating costs for items like shipping and airline tickets. Such core price increases usually take longer to fade than volatile energy costs do.

In anticipation that surging inflation will force consumers to reduce spending, MacroPolicy Perspectives has downgraded its forecast for economic growth this year from 3% to 2.7%.

Such a slowdown in growth poses a particularly difficult challenge for the Fed, because it comes at a time that higher gas prices are also lifting inflation. That pattern is akin to the “stagflation” dynamic that made the economy of the 1970s miserable for many Americans.

Most economists, though, say they think the U.S. economy is growing strongly enough that another recession is unlikely.