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Does Cold Truly Affect the Level Gauge on a Propane Tank?
Propane is like most other types of materials in that it is affected by cold temperatures. The propane gas contracts when the temperature does down. That reduced level of gas inside the tank is reflected by the gauge that reflects the level on the propane tank. Usually, this comes into play whenever a homeowner checks the gauge in cold conditions and sees the amount of the tank level before and after delivery. Depending on the conditions, the level on the tank might not rise as much as anticipated.

Propane Tank Level Gauge
The gauge on a propane tank shows you what portion of the tank is full. Normally, tanks are not filled more than 80% in order to allow the gas to expand during warm days. For instance, a 500 gallon tank, at a reading of 80 percent at normal temperatures reflects about 400 gallons of propane in the tank. This is about how much could be stored.

Normal Temperatures
The propane industry manages the popular web site Propane 101, that considers the propane reference point to be an exterior temperature of 60 degrees. For instance, if the gauge reads 50 percent of capacity on a day when the temperature is close to 60 degrees, then a 500 gallon tank would contain roughly 250 gallons of propane. If the temperature that day is much lower than 60 degrees, the gauge will read lower. Also, if the temperature is much higher than 60 degrees, the gauge would actually read higher due to the expansion of the gas.

Effect of Contraction and Expansion
The amount of energy contained or energy contained in a tank will not change when the gas either expands or contracts, based on the propane industry website. The amount of propane itself has not changed, but just the density of the gas has changed.

Cold-Weather Delivery
If a homeowner orders 100 gallons of propane to be delivered, they would be given 424 pounds of propane. If the homeowner has a 1000 gallon propane tank, they may expect the gauge to go up by 10% with the delivery of 100 gallons. These numbers will be accurate if the temperatures were near 60 degrees at the time of delivery. If the delivery took place during colder weather conditions, these chillier temperatures would result in a smaller increase reading on the propane gauge.

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