After a relentless month’s long climb, U.S. national average gas prices have declined, falling 16 cents from a week ago to $3.403 per gallon on Monday as per AAA. Gas prices have now declined 43 cents over the past 30 days, and are only $1.01 cents higher than a year ago. However, GasBuddy data compiled from more than 11 million individual price reports covering over 150,000 gas stations across the country show that gas prices are actually lower than where they sat 12 months ago. “For the first time in 670 days, the national average…