Throughout the movie, the weather seems to go from hot to very cold. In the beginning scenes you see the Garveys out trying to shore up the levee on there land and you can see their breath. In another seen, Lewis is walking behind his fathers tractor (planting seeds and the tractor over heats scene) in what looks like a hot summer afternoon. Same with the scenes wear Tom goes to the steel mill for work and it's very cold out while back at the farm, Mrs Garvey is sweating on the tractor while spraying the corn.
When Mae and Beth are moving stuff upstairs at the beginning, you get a view into the kitchen. There is a Leutz Corp. calendar on the kitchen wall that has obviously been altered because the months have visible white tape over them and the picture has been covered with another photo.