This is a good activity whether you are writing about yourself or about your character.
Working from your memory can often become fodder for a greater story, or a chapter in a novel. It’s been written that we should write what we know, so what better place to begin than from things we experienced?
Your task is to make a list of “firsts” in terms of weather. For example, the first snowfall, first tornado warning, first flood. Do you see any themes running through them all? Think about your feelings as you were in the midst of each. Think about your reactions, whether they be fear, joy, or even the no-reaction.
Which makes the best story? Choose that one and write.
Remember that it can be memoir or fiction.
Reread looking for emotional reactions and details.
Have fun with this one.