Gas trends were not typical in the year 2017

SIOUX FALLS, S.D. - Usually, gas prices across the nation tend to decrease this time of year, but that is not the case this year. The reason why gas prices tend to decline this time of year is because gas stations switch to a winter blend, which is cheaper to produce. They are also cheaper because the demand isn't as high.

Overall in 2017 though, the United States hasn't had a typical year when it comes to gas prices. The fact that the United States was affected by Hurricane Harvey and Hurricane Irma and the steady demand of oil outweigh the cheaper gas this time of year.

According to AAA, drivers across the nation paid the most right after Labor Day and the least the day after the Fourth of July. Usually this time of year drivers are paying the least and they're not. The good news though is that the national average today is below $2.50 per gallon for the first time in one month. So prices are still declining, just not as much as in the past couple of years.

In the first few months of 2018, drivers could continue to see the prices decline. The national average for a gallon could drop between $2.25 and $2.35 per gallon.

South Dakota's average price for a gallon of gas is actually higher than the national average at $2.51. Minnesota drivers are paying the least in the area at $2.43 per gallon. People in Iowa are paying right in the middle at $2.46 per gallon.