The town's airport registered a low of minus 8.1 degrees at 6.04am this morning, according to the Bureau of Meteorology. On May 31 Glen Innes hit a month record with a stiff minus 9.8 degrees.

Windchill dragged the apparent temperature down below negative double degrees for hours this morning, bottoming out at an obscene minus 12.

NSW's second coldest town, Applethorpe, registered minus 5.6 at 6.37am this morning. Armidale airport posted a reading of minus 3.6 at 4.22am. Usual suspects like Perisher and Thredbo sat at minus 1 and minus 3, with Victoria and Tasmania barely scratching zero.

Glen Innes's daytime temperatures rose to the mid teens by 11 and maxed out at 18.5 degrees, but the forecast is for the mercury to remain subzero until Sunday, with a minus 5 minimum predicted on Friday. There is almost no chance of rain until next week in a dry winter.