I'm curious how long everybody's car takes to warm up to operating temperature from a cold start.

One of the revelations I learned from my Ultragauge is that my car's normal operating temperature is ~ 210 F, but that the gauge on the dash starts reading 12 o'clock when the water temp is only 160 F. Thus, my warm up time, which I already thought was bit slow, was much slower than I realized.

Today I decided to pay attention to how slow. Car was parked all day outside. Ambient temperature was 52 F (according to dash display). At start-up, Ultraguage read 68 F. After 10 minutes of running (5 minutes of idle and 5 minutes of stop and go driving) the temperature finally reach 190 F.

Is this normal, or is it time to replace the thermostat?