Cold/Wind Chill in Forest, Pennsylvania

Following the snow event ending January 20th, an anomalously deep trough settled over North America through the 22nd. Temperatures plunged well below normal by the morning of the 21st, with lows in the -5F to -15F range, and wind chill in the -10F to -20F range with isolated colder values. Cold conditions peaked during the morning of the 22nd as Arctic high pressure settled in, with numerous lows in the -10F to -19F range, with wind chills as low as -25F in some brief cases.