Engine and transmission temp issues

I can not get my suburban to reach operational temp in the winter. I’m in Texas at the moment and the engine says it might get up to 170. When I head back to WV and it’s 30 out side I might be able to hit around 150-160 if I run it hard for a long while. I know this is not normal because my K5 will cook me in the cab at 10 outside in about 5 minutes. BTW She has a new radiator and t stat in her.

As for the trans the gauge I have is saying 80-100 to 120 summer

Any suggestions to get this more into a better ratings for winter or is this ok