Problem: NOAA will give you the average number of days per month for bad weather, such as rain, or as in my case, tornadoes, thunderstorms, etc. Some don't include weather days at all in a schedule and just deal with them as they happen. I have seen and used all of these methods. Weather days are often times given within certain parameters, such as the amount of rain, but the activities must be on the critical path. However compensation isn't always given. How important is it to account for weather in a schedule? Is it important or not to document the weather effects in schedule? What is the relationship between weather delays, total and free float, and predecessors and successors in a CPM schedule? Need Assignment Help?