I understand Seasonal Affective Disorder now.

We declare this May the worst EVER for D.C. weather - The Washington Post: "It is almost always cooler than it should be… It has yet to hit 80 degrees, joining just four years without such a day this deep into the month: 1893, 1917, 1935, and 1989. It has reached 70 degrees (or higher) just five times, tied for fourth fewest on record month-to-date. Four days (including today) have had highs only in the 50s, tied for seventh most on record month-to-date."