Chickens need about 16 hours of (day)light daily for optimal egg production. Currently in Orlando, Florida (chose that city as it's about in the middle of the state) is getting just under 10 1/2 hours daily. This, in conjunction with chickens needing 26 hours to produce one egg (each), will give you some days where it seems as if one or two of your hens will 'skip' a day. Sadly, they're not on a 24 hour a day schedule. You mention that you're giving them treats, and I'm concerned that too many treats, or treats that reduce their overall protein intake can also adversely affect egg production and the quality of their eggs. Treats need to be kept at or under 10% of their overall diet, by weight, not volume. You didn't mention how much protein is in their regular feed, nor if they're eating chick feed, all flock, or layer feed. My recommendation is 'all flock' with oyster or calcium (often ground egg shell) on the side to be consumed when desired. Protein is the expensive component of their feed, and all flock tends to have a higher percentage of protein. Most feed stores charge about the same for various grades of feed for your flock, so buying all flock feed and calcium supplement of your choice comes out cheaper pound for pound and nutritionally for your birds. I agree with a previous poster that four months is awfully young for your girls to start producing eggs, and wonder if you have "Production Red" hens instead of "Rhode Island Red". They pretty much LOOK the same, but production reds typically start laying earlier in their life, lay prolifically for a year or two, and typically succumb to one form of reproductive disorder or another before the age of three. That's not to say that all "Production Reds" suffer this fate, on this time schedule, but it's been my experience with them.
If expanding your flock to produce more eggs is not an option for you, you may consider storing their unwashed eggs in the refrigerator once their production picks up again in the Spring, as the eggs keep for several months this way. Your girls may produce enough to carry you through next winter.