Count Iblis II, can I ask you what your credentials are in Statistical analysis? No offence, but doing a monte carlo analysis based on your assumptions of what you think the weather stations should say based on climate change and then making 95% confidence intervals based on these simulations I believe is absurd.

Better than that. Why not get the data, test the data for trend analysis. Who needs monte carlo simulations for data that is already there, of which should you do them is subject to what you think should happen in the first place. This is not good statistical analysis.