Is there any help for feral cats when the temperatures drop well below the freezing mark? If not, then there should be. There is an easy fix to the situation which could clear your conscience and save a kitty from freezing to death as well.
One way to save a kitty from the throes of winter is to humanely trap them. In order to do so though takes time and commitment. You will have to gain their trust. Once you do that, you can introduce them to the shelter that you have built up for them (complete with towels, rags, straw or the like, to keep them warm and dry). Hopefully they will continue to use the shelter you have made so they will be safe during the harsh months of winter.
Some felines will be less afraid than others. If you gain enough trust, you can help to prevent more kitties from being homeless by using the trap-neuter-release type of program. The cats will not be harmed, they will just not add to the population any longer; remaining feral but infertile. This is a safe and humane way to keep the cat population down while protecting the cats out there already. This is also a good way to keep the cats closer to you as you fend for them in the cold winter weather.
One thing that you will want to be careful of if you do have feral or outside cats running around your yard is that they do not crawl up in your engine block to keep warm. If this happens, they can be mutilated when the engine starts up; getting hung up in a belt of one type or another. If you do have cats outside, always make certain to check your car or truck’s engine before starting the vehicle in order to avoid such tragedy from happening.
Many times an outside or feral cat will give birth during the winter. When the cold is bitter, it is better to move the mother cat and kittens (if she will let you) to a place that is protected from the wind, snow and/or ice. If there is not good enough protection, the mother cat and her litter could freeze to death. (It only takes a human less than 30 minutes to suffer frostbite when the wind chill drops below zero; imagine now a much smaller animal having to deal in that type of weather!)
There are ways for you to help feral cats in the winter time. More suggestions appear online or you can call your local shelter or rescue organizations to help. Veterinarians might also be willing to offer helpful suggestions. Whatever your source, please make certain that the felines have a place to go in times of bitter winter weather conditions!