Frost advisory set for Tuesday morning in York

Yorkers will see a bit of cooler weather this week, although not for too long.

The National Weather Service issued a frost advisory for the morning of Tuesday, Oct. 17.

Frost is expected to form about 2 a.m. and continue until about 9 a.m., according to the NWS.

Despite the colder temperatures in a warmer October, the frost advisory is not a sign of a dramatic drop in temperatures, according to Paul Head, observing program leader for the National Weather Service in State College.

"Actually, it's a sign that a big old high pressure system's coming in," he said.

Head said the frost isn't expected to go past Wednesday, Oct. 18.

"For York, you're a couple of weeks early, but really it's not that unusual to get (frost) in mid-October," he said.

Typically frost will start to be seen between Oct. 20 and Oct. 30. 

Glenn Ort trims his lawn at his West Manchester Township home Monday, Oct. 16, 2017. He planned to use his lawn tractor to finish the job. He said he liked the cool day to do the work. "Can't beat the temperature today," he said. Bill Kalina photo

"You're about 10 days early," he said.

The NWS is expecting temperatures to fall into the upper 30s between 5 a.m. and 7 a.m. Tuesday, Oct. 17.

After Tuesday, temperatures will begin to rise, Head said.

On Tuesday, the NWS is expecting a high of 62 and low of 37, but by Thursday, Oct. 19, the NWS is forecasting a high of 70 and low of 50.

Head said those with outdoor crops should cover them, and potted plants should be brought inside.

 — Reach Christopher Dornblaser at or on Twitter at @YDDornblaser.