It’s sort of all over the place but it’s mostly the other way round. The poles might see like +5-8c. It’s also the overall temperature. Today’s high temperature where I am is 33 and the low is 25. 33 isn’t super unusual, maybe a dozen days a year. 25 as a low though is crazy high even on days historically above 30. It all averages out to +whatever.

For temps by latitude/region this source seems ok on a quick search https://scied.ucar.edu/interactive/compare-climates-regional...

// The poles might see like +5-8c.

Poland continues to experience significant cold related deaths and any warning might be welcomed.