The price of a gallon of gas in Idaho has spiked dramatically in the last month. The latest figures from AAA Idaho show the average price of gas in the state rose 26 cents, from $2.96 per gallon on Feb. 2 to $3.22 Monday.  Prices at pumps in are trending toward the mid-$3 range. Some retailers were selling unleaded for $3.43 per gallon Monday, more than 50 cents higher than the same time a year ago. Still, Idaho motorists are getting a deal compared to other states. Idaho's statewide average is still 15 cents below the national average.