Peggy Williams of Warrington Township finishes her skating session on a cleared area of ice on Pinchot Lake at Gifford Pinchot State Park on Monday, Jan.
Peggy Williams of Warrington Township finishes her skating session on a cleared area of ice on Pinchot Lake at Gifford Pinchot State Park on Monday, Jan. 27. (Bill Kalina)

Yorkers have been granted permission to skip their evening chores, at least if they involve household appliances, as dirty dishes take a back seat to staying warm during the year's second deep freeze.

York residents are also among thousands of people on the East Coast being asked to find electricity-free means of staving off their cabin fever Tuesday night.

The operator of the Mid-Atlantic energy grid, Valley Forge-based PJM Interconnection, is asking people to lower their thermostats and postpone using major appliances from 5 to 9 p.m. Home heating is placing significant demand on the power grid as bitter cold grips the area, and the grid operator is asking people to reduce consumption to ensure there's an adequate power supply.

School delays: At least two school districts in York were delayed because of single-digit temperatures and a wind chill of minus 10 Tuesday morning. Helen Thackston Charter School in York City was closed because a frozen pipe burst, according to the school's Facebook page.

But the worst of this round of Arctic Blast v. York has almost ended.

Temperatures will drop to around 6 degrees overnight Tuesday into Wednesday, with wind chills of minus 4, according to the National Weather Service.

The high will be 18 Wednesday, but it will be sunny before dropping to 8 degrees overnight.

The weather service is predicting a slightly warmer Thursday, with a high around 29 and low near 20.

The weekend might sound balmy, with no negative signs in front of any of the forecasted temperatures. Friday will be the first day in several on which the mercury will push beyond freezing. It will be 36 degrees, with a high around 25.

There's a chance of snow and rain on Saturday, with a high near 40.

Sunday will be partly sunny, with a high near 37 and low around 22.

National Weather Service meteorologist Craig Evanego said the averages in York this time of year are highs in the upper 30s and lows in the low 20s. While well below normal early in the week, temperatures will slowly moderate as cold Arctic air eases, he said.

- Reach Christina Kauffman at ckauffman@yorkdispatch.com.