We know that the "rain" mentioned in Hosea is the Holy Spirit , because it speaks of "he". So we can know for sure its not talking about normal rain here. Then we are told that this rain comes twice . First as the "early rain" and then as the "latter rain" Hos 6:3 And let us know, let us follow on to know Jehovah: his going forth is sure as the morning; and he will come unto us as the rain, as the latter rain that watereth the earth.
Hosea is specifically prophesying about the latter rain here, because we see he is talking about our times :Hos 6:2 After two days will he revive us: on the third day he will raise us up, and we shall live before him.
We know that a day is "as a thousand years" 2Pe 3:8 But forget not this one thing, beloved, that one day is with the Lord as a thousand years, and a thousand years as one day. So when we translate Hosea using Peter's key we see : Hos 6:2 After two thousand years (after Christ) will he revive us: on the third day (after Christ) he will raise us (believers) up, and we shall live before him.
Then on that day (which are these days we live in) we see that the latter rain will be poured out. "HE" will then come unto us AS the rain, as the latter rain.Joe 2:23 Be glad then, ye children of Zion, and rejoice in Jehovah your God; for he giveth you the former rain in just measure, and he causeth to come down for you the rain, the former rain and the latter rain, in the first month. and we also see that in the New Testament we are told to wait patiently for it. And again, James confirms what Hosea is saying that it is indeed Jesus coming to us IN HIS PEOPLE (because its the fruit that is spoken of)Jas 5:7 Be patient therefore, brethren, until the coming of the Lord. Behold, the husbandman waiteth for the precious fruit of the earth, being patient over it, until it receive the early and latter rain.
We have just entered the time in which this last part is about to be fulfilled.