This is from way out of left field. I noticed a video clip on yahoo about June 20 being the happiest day of the year. There is actually a scientific formula involved. I've posted the story below and here is the link:
http://www.kare11.com/news/news_article.aspx?storyid=515714.
According to a formula devised by a psychologist in Wales, today could be the happiest day of the year.
Cliff Arnall from the University of Cardiff in Wales cooked up the formula.
It combines things like emotions, stress, and weather, and comes up with a sort of "happiness quotient."
So here's the formula:
O + (N x S) + Cpm/T + He
"O" is time spent outdoors, and N is time spent in nature
"S" is more socialization in the summer, things like barbecues and other gatherings
"Cpm" relates to positive memories of childhood summers, and "T" factors in temperature
"He" is vacation anticipation
When you factor it all together, June 20 is supposed to be the happiest day of 2008.
It combines a bunch of pleasant activities, with the day with the most amount of sunshine.
For your planning purposes, Arnall's formula says the third Monday in January is typically the gloomiest day of the year.
In addition to the colder weather that day, debts from Christmas and botched New Year's resolutions tend to drag down spirits the most on that day.