The two chief revenue sources, taxes on sales and personal income, also reflect economic activity and missed their targets last month. Personal income tax collections totaled $182.5 million, just $400,000 below the estimate, and remain up by 2 percent for the budget year so far.
"That's a fairly anemic growth rate," Muchow said.
Those collections would have been worse had Congress temporarily averted the so-called fiscal cliff before Jan. 1, Muchow said. Because of the various last-minute changes made by Congress to the tax code, the Internal Revenue Service did not process income-tax returns -- and any resulting refunds -- until the end of January, he said.
Sales taxes brought in $133.5 million last month, $2.2 million less than projected. That was below the estimates for the year as well as for where they were a year ago. But Muchow attributes much of that to the ongoing reductions of the sales tax on groceries.
January's few bright spots included taxes on corporate net income, which exceeded their $2.5 million estimate by $1.9 million.
All told, the revenue picture suggests tough times for the next budget year, Muchow said.
Tomblin, a Democrat, has already warned of as much. He previously asked most state agencies to trim their spending plans for the coming year by 7.5 percent. The governor will submit his proposal for the next budget on Feb. 13, when the Legislature begins its regular 60-day session.
This budget year began with West Virginia tax revenues missing their monthly estimates in July and August, but then rebounded with four months of better-than-expected collections.