According to the "experts" there was a time when ice glaciers cut the rivers and canyons in the USA too. What happened to all that ice?
Weather reminds me of my job. As a software tester, it's kind of like, feast or famine. We either have so much work to do, or heads swim, and then a week later it's all over and we wait, and wait, and wait.
I keep reminding my fellow "testers", we all just need to be like a fishing bobber. When the waves come and go, the bobber just floats on the surface, it never sinks (unless a fish pulls on the line). When the water ripple forces the bobber up, it floats up. When the water ripple goes down, the bobber lowers.
So it is with the weather. It goes "up" and "down" all the time. Just be like that little bobber floating on the lake and simply go with the flow. We have no control over it anyway!
Edit: It can't always be sunshine you know. The old expression, "all sunshine makes a desert!"
Some of our best camping experiences, some of the best times we've had, some of the funniest moments we remember happened when it was raining, or a tornado alert was sounded, or it snowed!