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Does Cold Temperature Affect the Level Gauge on a Propane Tank?
Similar to the majority of other kinds of materials, propane is affected by cold temperatures. As the temperature declines, the propane gas contracts. That reduced level of gas in the tank is reflected by the gauge which reflects the tank level. Normally, this happens whenever a homeowner checks the gauge during cold conditions and sees the amount of the tank level before and after delivery. Depending upon the weather, the tank level might not go up as much as expected.

Propane Tank Level Gauge
The propane tanks guage will show what percentage of the gas tank is still full. Tanks are normally not filled more than 80% full because this will allow for the gas to expand during warmer temperatures. For example, a 500 gallon tank, at a reading of 80 percent at normal temperatures reflects around 400 gallons of propane inside the tank. This is around the amount that can be stored.

Normal Temperatures
The propane industry operates the popular website Propane 101, which considers the propane reference point to be an exterior temperature of 60 degrees. For example, if the gauge reads 50% of capacity on a day when the temperature is near 60 degrees, then a 500 gallon tank will have around 250 gallons of propane. If the temperature that same day is a lot lower than 60 degrees, the gauge would read lower. In the same way, if the temperature is a lot higher than 60 degrees, the gauge would actually read higher since the gas expanded.

Effect of Expansion and Contraction
The amount of energy contained or energy contained inside a tank would not change as the gas either contracts or expands, according to the propane industry web site. The amount of propane itself has not changed, but only the density of the gas has changed.

Cold-Weather Delivery
If a homeowner orders 100 gallons of propane to be delivered, they would receive 424 lbs. of propane. If the homeowner has a 1000 gallon propane tank, they could expect the gauge to go up by 10% with the delivery of 100 gallons. These numbers will be correct if the temperatures were close to 60 degrees at the time of delivery. If the delivery took place during colder weather, these chillier temperatures would cause a smaller increase reading on the propane gauge.

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