When was the First Rain in the Bible?

Following the creation of the Earth, Genesis 2:6 states that God caused a mist to come up to water the Earth. This is the first mention of any kind of moisture that would wet the lands and feed the plants. He did not cause it to rain when he first created the Earth. Nowhere else in the creation of the Earth or of Adam and Eve does it mention any rain.

According the research of many experts, nowhere in the Bible is rain mentioned until the Flood of Noah. Rain is mentioned in several areas after that, but not before that, which would indicate that the first rain on Earth was the 40 days and nights that God sent after he had Noah build the ark.

After the flood, the Bible talks about rain. It is a consensus with many researchers and scholars that the Earth was a tropical place, watered by streams, lakes, oceans and mists until the time of the Ark. God used the rain to destroy mankind because they had become such horrible and perverted sinners. They no longer obeyed God's word and had become wicked.

Latter rain is mentioned, which refers to spring rain, and former rain is mentioned, which refers to autumn rain. These references are not made until well after the time of Noah. Several verses in the Bible mention rain as water from heaven for fruitful season, such as in Acts 14:17. Rain is also mentioned in Job 37:6 as that “which the clouds do drop and distill upon man abundantly.” All of the verses than mention rain, other than at the time of the flood, come after the flood and never before it.