Pluviophile

[Sarah]

(n) a lover of rain; someone who finds joy and peace of mind during rainy days

[Jessica]

A spurious Latin-Greek formation coined by the Greekless which attempts to express love for rain but in fact manages to express both pretentiousness and ignorance, the proper Greek formation being ombrophile, with ὄμβρος meaning long rain.
(Note: A psekaphile would be one who likes drizzling rain, and an hyetophile one who likes the rain in general.)

[Becky]

A person who gets sexually aroused by the rain

[Britney]

People that love rain are called pluviophiles. The word [pluviophile] comes from the Latin word “pluvial,” which means rain, and “[phile],” which denotes a thing or a person. Therefore, a pluviophile is a lover of rain, or someone that finds joy and [peace of mind] during the rainy days.

[Agnes]

someone who washes their [pain] [away] with [the rain]