I'd like to remove these dead branches, but I'm not sure when is the best time of the year to do this. I've done some searching, and found information regarding pruning live branches, but not much about the dead ones. Some of the articles I've found state to trim only during winter, but that would be much harder to identify the dead branches. Other articles say mid to late summer (starting late June) is OK.
The dead branches are all fairly low (reachable from the ground with a pole saw), and finances are somewhat tight right now, so bringing in a professional isn't really an option.
Any information would be appreciated.