Learn Portuguese (Portugal): Fevereiro também é frio.

Usually, months of the year like fevereiro are not capitalized in Portuguese unless they appear at the very beginning of a sentence, just like in this example!

Is Fevereiro masculine or feminine?

All months of the year in Portuguese are masculine. Because Fevereiro is a masculine noun, the adjective describing it must also be in its masculine form: frio (instead of the feminine fria).

Why does this sentence use é instead of está to talk about being cold?

We use é (from the permanent verb ser) because we are stating a general, permanent characteristic of the month of February. If we were saying "It is cold right now" or "today", we would use the temporary verb instead: está frio.

Can I put também at the end of the sentence, like we do with "too" in English?

It is much more natural in Portuguese to place também (also/too) right before the verb it goes with. So, Fevereiro também é frio is the normal way to structure this, rather than putting também at the very end.