Coolant Temperature Gauge - What the normal operating span?

The coolant temperature gauge for normal span is roughly 165*F to 225*F from left tick mark to right tick mark.

Here the coolant sensor is operating and at 164*F the needle is barely off the mark on the cold side.

Here the temperature is fooled to 216*F but not quite there to the tick mark figuring its going to be about 225*F at the mark.