Learn Romanian: Ploaia este rece în noiembrie. - The rain is cold in November.

In Romanian, the definite article meaning "the" attaches to the end of the noun. The base word for rain is ploaie. Because it is a feminine noun ending in -e, we drop the -e and add -a to make it ploaia (the rain).

I learned that "cold" is "frig". Why is "rece" used here instead?

In Romanian, frig is used for the general weather or how a person feels (like este frig for "it is cold outside"). The word rece is an adjective used to describe specific objects or substances that are physically cold to the touch, such as rain (ploaia), water, or drinks.

Does the adjective "rece" need to change to match the feminine noun "ploaia"?

No, it stays exactly as is! Adjectives that end in -e in their base form, like rece or mare (big), have the exact same form for both masculine and feminine singular nouns. You only need to change them if the noun is plural.

Why isn't the month "noiembrie" capitalized here?

Unlike in English, months of the year and days of the week are not capitalized in Romanian unless they happen to be the very first word of a sentence.