porch factor
The increased or decreased number of residents sitting out side or on their homes porch in the evening hours on warm temped nights, to indicate a correlation of higher or lower level of criminal activity based on the theory that the more people present in a given area and the increase of warmer weather, also the chances for interaction with others increased thus the possibility of criminal activity or accidental injury, increases.
I believe there will be a lot of people getting injured tonight because it looks like the Porch Factor is up.