I actually got this from a Jewish website. Rain is described very beautifully here.
“As we are well aware, water is essential to life. It nourishes us when we drink it, cook with it, or use it to irrigate our crops. It surrounded the world when God created the earth, and surrounds a fetus as it grows in its mother’s womb. Plants depend on water to produce energy in photosynthesis. That is why plants spring up around water. Just look at a satellite map of any river and you will see a lot of green vegetation on both banks of the river.” - My Jewish Learning
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Our beloved Prophet Muhammad (peace & blessings of Allaah be upon him) said:”Two are the du’as that are never returned: the du’a made when the prayer is being called, and at the time of rainfall.” (Abu Dawud).
During rain:
Allahumma sayyiban naaf’ian.
(O Allah, (bring) beneficial rain clouds)
After Rain:
MuTirnaa bi Fadhlil-Llahi wa Rahmatihi.
(It has rained by the Bounty of Allah and His Mercy)
When it thunders:
Subhanah alldhi yusabbihur-ra’du bi hamdihi wal malaa’ikatu min khifaatihi
Glory to Him whom thunder and angels glorify due to fear of fear)
so according to me its always a blessing...................
