Roasting in changing weather

HI

I roast on a Giesen 1 K and as I lve in the UK the most part we have an average of 70 - 80 % humidity and cool temperatures.

As spring arrives and the humidity drops I am trying to work out if I should drop my charge temperatures 5c or how I can adjust my profiles. Am I right in thinking that if the humidity drops the transfer of heat will change? Will the beans be holding less water due to the rising heat and if so should I apply less heat?

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