Simple past tense and past participle of rain.(verb)
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Use "rained" in a sentence
"Hunt would say, for some slept on rafters, cross-beams, etc. Still it poured down; still the fountains of heaven gushed _forth_, fifth, tenth, or twentieth; anyhow, it continued to rain, and at daybreak it rained yet, and the regiment moved on to Mingo Flats; drove in the rebel pickets; heard the Secesh varmints beat the long roll; knew they were scared; _and still it rained_!"
"Tadpoles, along with small fish, have rained from the sky on more than one location in the country."
"BUFFALO, N.Y. (AP) - Stung by the cascade of boos that rained from the crowd at the end of the second period, Sabres forward Thomas Vanek gave Buffalo fans something big to cheer about in the third."