Problem 2) If the volume of a rectangular prism is 30  3 and its height is 5 , its length is 2 , what is its width? Problem 3) The volume of a rectangular prism is 125  3 and its height is 5 .
Averages for Washington DC in September. The weather in September in Washington DC is very attractive for those that want to avoid the peak heat of summer, yet still enjoy lots of warm days on their visit. On average, peak temperatures during the day in September still reach up to 27Â°C.
On the hottest days in Washington DC, the thermometer reaches into the 90s Fahrenheit. Hot weather generally shows up periodically from May to September. Some years even get a 90-plus degrees day in April or October. Temperatures sometimes climb to 100 degrees or more, but that's not a yearly event.