How good is your memory? Let's try it out. Write down what you think you remember prices being in May for 2006-2009. May is typically a volatile month that can bring rapid price swings as refiners and retailers switch fuel types each year.

May 31, 2010: Forecast: $2.795 (-0.105)
May 1, 2010: $2.900

May 31, 2009: $2.492 (+.0.438)
May 1, 2009: $2.054

May 31, 2008: $3.972 (+0.351)
May 1, 2008: $3.619

May 31, 2007: $3.174 (+0.182)
May 1, 2007: $2.992

May 31, 2006: $2.846 (-0.038)
May 1, 2006: $2.884

May 31, 2005: $2.076 (-0.134)
May 1, 2005: $2.210

If the new Memorial Day forecast stays on target, May of 2010 will see the biggest decrease from start to finish since 2005, and the second largest May decrease on our records.

I've also noticed that since May 3, wholesale prices have dropped far faster than retail prices. While I am getting indications that the U.S. and Canada averages are dropping, they are doing so at a tediously slow rate. During the last week, retailers margins have improved greatly, and as time goes on, I'm hopeful prices will go down for many more of you.

For now, hold tight, and only buy what you need- prices do have room to continue to slowly drop.