Is this ("this" sounds better than "that" in this context) April?

It is now ("It is now" sounds better than "now it is." "It is now" sounds like you've reached a certain point in time, and "now it is" sounds like you're only commenting on the present state of things) the 13th of April, but the weather is like it is in early December.
I live in St. Petersburg, Russia. We are familiar with nasty weather and long winters. But still, every spring when everybody is tired of frosts and snow we long to see the warming sun. Usually in April it`s rather warm here, but not this year, unfortunately. I am deeply depressed. If you look at the photo I have attached you will understand why I am in such a bad mood.
Spring, where are you?

Very good! Most of the corrections were minor. I hope springtime weather comes to St. Petersburg soon!