Lake effect events occur often in Buffalo, New York due to Lake Erie and Lake Ontario. With climate change being a looming threat, we are unsure how warmer temperatures will impact lake effect snow. Due to that, we are trying to look at past warming and cooling events to see how lake effect has changed over time. In order to do that, we need something left over from past lake effect systems. At two sites in New York State, Amherst and Skaneateles, precipitation samples have been collected from 2014 to 2025. Using instrumentation, we are able to examine the isotopic composition of the hydrogen and oxygen within the precipitation. The isotopic composition changes based on meteorological inputs, such as temperature and humidity, that makes every event unique. Lake effect events tend to have a different isotopic composition than non-lake effect events, giving us a clue to how lake effect affects precipitation. In the future, we can use our data to see how much the lake actually contributed to the lake effect events. We can then classify other events as lake effect events and also use historical records such as lake sediments to see how the climate has changed.