The national average price for diesel jumped a record-setting 30 cents in the days immediately following Hurricane Katrina, according to the U.S. Department of Energy.

The national average rose to $2.898 per gallon for the week ending Sept. 4, according to the department. That's up 30.8 cents from the previous week. That's also more than $1 higher than the same week in 2004.

The highest jump was in the Central Atlantic region, which saw prices rise 33.5 cents to $2.993 per gallon. The other East Coast regions weren't far behind. New England checked in at $2.977 per gallon, while the Lower Atlantic posted $2.853 per gallon. Overall, the East Coast saw an average of $2.90 per gallon.

California still had the highest prices in the country, jumping 20 cents to an average of $3.25 per gallon. The rest of the West Coast was close to that at $3.149 per gallon.

Averages in all other areas of the country remained below $3 a gallon. The Gulf Coast region jumped 32 cents to $2.833 per gallon, while the Midwest rose to $2.843 per gallon and the Rocky Mountain region hit $2.976 per gallon.