CEDAR RAPIDS, Iowa  – Gas prices are expected to continue falling through the election. Right now, the national average price for a gallon of gas is $3.20. That’s down 24 cents from a month ago. Triple A says in Iowa, the average price of gasoline (as of Sept. 15th) in $2.99 a gallon, which is 99-cents cheaper than at this same time last year. Diesel is selling for an average of $3.35/gallon in Iowa. Last year, the price was $4.39 on average.

Prices are expected to keep dropping, with a national average below three dollars a gallon as soon as next month. The primary culprits behind the dip are low demand and falling oil costs.

According to new data from the Energy Information Administration (EIA), gas demand fell last week from 8.93 million b/d to 8.47. Meanwhile, total domestic gasoline stocks rose 219.2 to 221.6 million barrels, and gasoline production decreased last week, averaging 9.4 million barrels per day. Tumbling gasoline demand and oil costs will likely keep pump prices sliding.