There is no formal definition of the weather that constitutes a Chamber of Commerce Day as ten people will likely have ten opinions on what it means. The weather in Iowa on Monday was about as good as it gets though with bright sunshine, low humidities, a gentle breeze, and comfortable temperatures. The featured chart presents the frequency of various daily summary variable combinations based on period of record data for Des Moines. The black line represents the combined frequency of having a high temperature of at least 75°F, a low temperature below 55°F, a max dew point below 55°F, and an average wind speed below 10 MPH. For this time of year, having such cool overnight temperatures and low dew points are certainly the limiting factors as temperatures and below 10 MPH winds are both above 50%. For those that like hot and muggy conditions, a taste of your perfect weather is upcoming later this week.

Voting:
Good = 9
Bad = 0