This is my take on this - I'm an engineer but not an antenna engineer or part of the industry. Somebody with more experience can correct me if I make a mistake.
Ok, 15 CKMI has a noise margin of 2.5. So that's 2.5 dB above the minimum amount of signal needed to receive that channel. 2.5 dB is 20 log(Srcv/Smin) where Srcv is the amplitude of the signal to be received, and Smin is the minimum signal amplitude in the air that can be reliably received. So Srcv is 33% higher than needed, theoretically, if your antenna has a dB gain of 0 (unity gain). Now, most antennas have a dB gain figure. You can add that to the in-the-air signal strength to get an idea if you are going to be able to receive the channel.
NB this is ideal behavior. Confounding circumstances like trees or buildings blocking the signal path will change the outcome. And local topography matters too.
CIVM is -2.0 dB. Don't know what to say about CJNT, since it's not on your plot. Not sure what you are referring to with selecting pending applications.
Typically your good TV antennas have gains in the high single digits or low teens. For example, the very sensitive UHF-only Antennas Direct DB8e has a peak gain between 14 and 17 dB, depending on the station frequency. Usually the industry people on this site recommend Antennas Direct or Antennacraft antennas, apparently based on performance and build quality.
For WVNY I would use an Antennacraft Y5713
http://www.antennacraft.net/Antennas/AntennasVHF.html and combine that with the DB4. I presume you have a plan for combining these sources?
If you want the high VHF capability and don't want to have another dedicated VHF antenna, you could go with one of the Antennacraft HBU series antennas. I'm reluctant to recommend a specific antenna because I don't have any experience with the products ... but you can get the HBU44 for the same price as the 91XG and have VHF capability.