>>1126008if want some historic example look into
>https://en.wikipedia.org/wiki/Year_Without_a_Summerthat's what a single volcanic series did.
>ice dams forming in switzerland summer>snow as far down as taiwan (30°)>quebec 30 cm snow in august> in europe snowfall is common above 800m all year long.> accumulated snow causes devastating floods once it melts but some regions were fine as the ash followed jetstreams from 2 single start points.