Gas prices in Vermont are continuing to drop and are nearing the $3 a gallon threshold. On Monday the average price for gas in Vermont was $3.05, down nearly 60 cents in the last month. Nationally, gas prices have dropped to $2.93 a gallon. The organization AAA says a year ago the Vermont average price for gas was $2.828. Joseph Choquette of the Vermont Petroleum Association says the price decline is being driven by the national economy and competition.