[Tarheel]

The violent explosion of released gases blasted huge quantities of ash, cinders, pumice, bombs, and larger blocks skyward

The year after the Krakatoa eruption, it was quite cool here in NA. It was called the year without a summer. All the ash in the atmosphere had decreased the sunlight getting to earth.

[VOA]

"The year after the Krakatoa eruption, it was quite cool here in NA. It was called
the year without a summer."

I'm no expert...but my understanding is that the "year without a summer" is
attributed to a massive eruption of another Indonesian volcano, Tambora.

http://vulcan.wr.usgs.gov/Volcanoes/Indonesia/description_tambora_1815_eruption.html