blood-rain

On the same paste with the "blood-rain" there have been observed white, blue, and yellow spots, which were not distinguishable in structure and character.

Scientific American Supplement, No. 286, June 25, 1881 Various

The 'blood-rain' that fell all over Aquitaine, and which made people watch in terror for what might come next, was followed by

Wanderings by southern waters, eastern Aquitaine Edward Harrison Barker 1885

_Item_, at Stralsund there was a red rain -- yea, the whole sea had the appearance as if it were turned into blood; and some think this was a foreshadowing of the great and real blood-rain at Prague, and of all the evils which afterwards fell upon our whole German fatherland.

Sidonia, the Sorceress : the Supposed Destroyer of the Whole Reigning Ducal House of Pomerania — Volume 2 Wilhelm Meinhold 1824