You can't talk about England and not talk about the weather.
The Brits have lots of terms for raining. Some are pretty standard:
Misty
Drizzle
Spitting
Spotting
Deluge
Some are a bit more English:
It's chucking it down
Tipping down
Plothering down
Raining stair rods
Pelting it down
Lashing it down
Any my favourite:
Pelting it down
Lashing it down
Any my favourite:
Really pissing it down
Although it rains 80% of the days, it is pretty mild. So mild this year, that the Easter flowers bloomed in January this year: