Luhansk, Donetsk, Zaporhizhia, Kherson, Crimea
Only abovementioned 5 regions had referendums and therefore fall into "Russia considers part of Russia" category as they are really treated as Russian regions by Russian law. Any other regions of Ukraine are not, at least currently.
Thanks for asking, it was around +10 degrees per Celsius this afternoon, which is quite warm for this time of the year. But there is a downside as there's melting snow everywhere.
This profound analysis is a real gem of modern Western thought!