Why is it incorrect to use the argument ""it is too cold today"" to discredit the existence of climate change?

for someone to say "it is too cold today" means that he/she felt more cold on that particular day. Which means they is a climatic change. It is wrong to use this statement to discredit climate change because the conclusion which is "it is too cold today" will not support any premise you will give in that argument to discredit the existence of climate change. The statement means a change in temperature which is an example of climate change. Therefore for any argument to be valid, the premise of that argument must support the conclusion and the conclusion must support the premise as well. For this statement "it is too cold today" to be used in an argument to discredit the existence of climate change means that such argument is not valid, and therefore the argument is assumed null.

answer; deontological theory;