recent tree rings
For specific questions like this, your best bet is to contact that the experts with the International Tree-Ring Data Bank (ITRDB), which is maintained by the NOAA National Centers for Environmental Information. Their contact email is located in the footer of the databank's homepage.
Fair warning, though, I think such a dataset could be hard to find because the whole point of tree-ring data is to create a high-frequency, continuous record of environmental variables like temperature or precipitation over very long periods of time, the longer the better, generally speaking. Just like any other dataset, the shorter the period, the greater the level of uncertainty, so scientists aren't going to have a lot of motivation to create such short records.
But...I am not an expert! Perhaps such records exist as part of efforts to correlate tree ring data to climate variables during the modern observation record or something. Good luck!