Translation:In July and August, it is summer in Russia.
In the middle of the Eurasian continent, the temperature difference is big, no ocean to keep the temperature up or down. That means both cold winters and hot summers. Depending on where in Russiia, of course.
That's exactly so! The amplitude of temperature changes is huge, also during one season. But that makes life more interesting)
The record high is 36.6°. Pretty warm, sure, but not what I would call stone-splitting.
Shouldn't there be a comma between "aŭgusto" and "estas?" Aren't they different clauses?