According to researchers bad weather can affect the stock market negatively. The study which reveals that bad weather triggers mild depression that distracts "even the most sophisticated of investors." http://www.fox28.com/story/30472784...r-can-affect-the-stock-market-investor-advice . . . according to researchers brokerage-firm analysts experiencing bad weather were nine to 18-percent less likely to issue an annual earnings forecast, recommendation to buy, hold or sell, or make target-price recommendations.