I tend to use probability more for decision making - usually trying to determine whether I need to bring an umbrella or rain gear with me on a given day. If the probability is low I can usually just look out the window and time my trips outside when it’s not raining and probably get by without rain gear. Whereas a high probability means I’m probably going to need to go out in the rain at some point, and need to pack appropriately.
I also do a lot of cycling, and total duration spent in the rain tends to matter more to me than the amount of rainfall. I don’t mind riding through a quick downpour or two on a ride if I can dry out in between, but spending several hours in constant rain can be miserable (and hypothermia becomes a concern) - even if it’s light rain.
Of course expected amount definitely has uses, too. For example if there is rain forecast for tonight, and I’m trying to determine the probability that a field will be usable for practice in the morning.
Anyway I would say that both probability and expected amount are important, and any competent weather app should offer both. The Apple Weather app only shows hourly forecasts for expected amount, and that alone would be enough to be a dealbreaker for me.
I also do a lot of cycling, and total duration spent in the rain tends to matter more to me than the amount of rainfall. I don’t mind riding through a quick downpour or two on a ride if I can dry out in between, but spending several hours in constant rain can be miserable (and hypothermia becomes a concern) - even if it’s light rain.
Of course expected amount definitely has uses, too. For example if there is rain forecast for tonight, and I’m trying to determine the probability that a field will be usable for practice in the morning.
Anyway I would say that both probability and expected amount are important, and any competent weather app should offer both. The Apple Weather app only shows hourly forecasts for expected amount, and that alone would be enough to be a dealbreaker for me.