Low coolant, check when engine is cold.
Can be a defective temperature sending unit. If you just chance the coolant can be air trapped in the cooling system. You would need to bleed all air from the system. Can also be a defective gauge, but highly unlikely.
To prevent the solution from recrystallizing, which will happen when the temperature drops
It drops during hibernation
It drops quickly to zero once the temperature goes below freezing.
The heater core may be plugged or not flowing properly. This would not allow the water to flow properly to cool the motor. Also you may have a bad or loose ground wire to your heater switch, this will give you a false reading on the temperature gauge.
When the temperature drops the less water vapor in the air
When the temperature drops the less water vapor in the air
Water drops that fall when the temperature is below freezing, fall as SNOW . Water drops that fall when the temperature is above freezing fall as RAIN .
I think that the average temperature should be recorded because some people need to find answers quickly!!!!!The average temperature of the Great Victorian desert is infact 40oc in summer but in winter it drops to 23oc.
When air pressure drops temperature also drops. Thus on high mountains low air pressure is accompanied by low temperature. This is true for high atmosphere also.
The only power used by a gas water heater is the small current generated by the thermocouple that keeps the gas valve open. It comes on mechanically when the water temperature drops. You don't need house current.
A thermostat does nothing to prevent the loss of heat. That's the job of insulation. All the thermostat knows is to turn the heater on when the temperature drops below some number.