OF THE
TIMES

In 1815, Mt. Tambora of Indonesia exploded with such strength (the greatest volcanic eruption in perhaps the past 60,000 years) that the entire northern hemisphere was encircled with ash. By the summer of 1816 freak cold waves and snow enveloped much of North America, Europe, and Asia, along with snowfall in the eastern U.S. and and Canada.
Between June 6th and June 8th accumulating snow was observed as far south as the Catskills in New York (where one inch was reported) and highlands of central and northwest Pennsylvania. Snowflakes were seen at sea level as far south as ten miles north of tidewater on the Hudson River just above New York City."
The deepest accumulations were reported in the mountains of Vermont where snowfalls of 12-18" were measured at 1,000-3,000' elevations (Cabot, Vermont with an elevation of 1,300' reported 18" although it isn't clear if this was a level or drift measurement). Quebec City in Canada reported 12" on level with drifts up to two feet deep.

Comment: True, tornadoes in northern Italy are generally very rare, but in the last few years there have been many:
Tornado slams into Italian steel plant - video