After you spend an entire solar year here the first thought that you could have is: what the fuck is happening here?
The weather here is really strange, you just can't understand how it works anymore.
I lived mostly in the south but in the north too. In south summer is crazy and the dry weather is really common in this part of the year.
We can reach near max 45 C° (113 F°/318,15 K°), so it's almost like you live in a desert. And when this happens only a conditioner can save you from the terrible heat. In north well, it depends where you go. In the Italian alps summer it's not that hot, but in the Veneto well you can reach 30 C° here but it's not always that dry like in the south (well you can't really understand how it works).
In autumn there's only rain, a lot sometimes (in 2016 it rained really a lot).
In the winter frost can be anywhere. In south we reach max 0° or -5° celsius if you go to cities with higher elevations, but it's always around 10° C tbh. On the mountains it's obviosly different.
Rain always happens, snow could happen rarely, almost never but still on mountains is different it happens for sure. Instead the north around 1 °C for sure and the degrees below zero are never a novelty.
The spring... jesus fucking christ
... it's really hard to tell. It's the part where you really can't understand what's going on to the weather.
I think I can try to explain it to you only by making an example: At 12:00 AM it rains a lot, like a motherfucking rainfall. But then, at 12:30 AM, the rain stops and the clouds go away. Clear skies accompanied by a rainbow (rightly) and a sweet sound of strings.
Now that happened in north and south. And I don't understand how that happens. If the wind was very strong then there was a reason but there isn't I just don't understand. And those were the four seasons
About climate events and disasters I think you know already something. Tornados don't happen, they can but I never saw or heard of one here. The risks we have here are the earthquakes and the volcanos.
We have stratovolcanoes and submarine volcanoes. I think the most dangerous that can create a disaster is the Vesuvius, a dormant volcano that doesn't erupt from a long time, and its sleep won't last longer. It's dormant due to that kind "stopper" it has on the main crater.
If you go see the history of Vesuvius you'll see how dreadful the eruptions were. And more the volcano rests more the pressure increases, and more it does more the next eruption will be disastrous (according to the theories).
The earthquakes are common in the center of Italy, and luckly I actually never lived there so much. So I don't know how really they are there, but you can guess that from the last ones I suppose.