En février, je reste souvent à la maison le soir, parce qu’il fait encore froid et que la nuit tombe tôt.

For months in French, you normally use en to mean in: en février, en avril, en décembre.

So:

• en février = in February

You would not normally say au février here.

In French, names of months are usually not capitalized unless they begin a sentence.

So:

• février
• mars
• lundi

This is different from English, where February and Monday are capitalized.

Yes. Rester commonly means to stay or to remain.

In this sentence:

• je reste à la maison = I stay at home

It suggests remaining somewhere rather than going out.

In French, short adverbs like souvent, toujours, déjà, and encore are often placed after the conjugated verb.

So:

• je reste souvent = I often stay

That is the most natural word order here.

Both can work, but they are not exactly the same in tone.

• à la maison = at home
• chez moi = at my place / at home

In many contexts they are interchangeable. À la maison is very common and neutral.
So:

• je reste à la maison le soir means I stay home in the evening

French often uses definite articles with parts of the day to express a general time when something usually happens.

So:

• le matin = in the morning
• l’après-midi = in the afternoon
• le soir = in the evening

Here le soir means in the evening / in the evenings, in a general habitual sense.

Because French commonly expresses this idea with just the article + part of the day.

So English says:

• in the evening

French says:

• le soir

It is simply the normal idiomatic structure.

Because que becomes qu’ before a vowel sound for ease of pronunciation. This is called elision.

So:

• que il → qu’il
• que elle → qu’elle

That is why you get:

• parce qu’il fait encore froid

To talk about weather, French often uses faire.

So:

• il fait froid = it is cold
• il fait chaud = it is hot
• il fait beau = the weather is nice

Using il est froid would usually describe a thing or person as cold, not the weather in general.

Here encore means still.

So:

• il fait encore froid = it is still cold

It suggests that the cold weather has not ended yet.

This is a very common French structure. When one conjunction introduces two clauses, French often repeats only que before the second clause.

So:

• parce qu’il fait encore froid et que la nuit tombe tôt

This means:

• because it is still cold and because night falls early

In natural English, you usually would not repeat because, but in French et que is very normal after a first parce que.

That sounds less natural in standard French. After parce que, French normally wants que repeated before the second clause:

• parce qu’il fait encore froid et que la nuit tombe tôt

That repeated que helps clearly connect both ideas to parce que.

Literally, it means the night falls early.

French often uses tomber in this expression:

• la nuit tombe = night is falling / night falls
• la nuit tombe tôt = night falls early

In more natural English, you might also think of it as:

• it gets dark early

Because la nuit tombe is the normal expression for night falls or it gets dark.

Il fait nuit means it is dark / it is nighttime, but it does not express the idea of darkness arriving in the same way.

So:

• la nuit tombe tôt = night comes early / it gets dark early
• il fait nuit = it is dark

Because the sentence describes a habitual situation, not a one-time event.

French often uses the present tense for things that usually happen:

• je reste souvent
• il fait encore froid
• la nuit tombe tôt

So the present here corresponds to English expressions like:

• I often stay
• it is still cold
• night falls early

Yes, the meaning is very close.

• à la maison = at home
• chez moi = at my place / at home

Both are natural. À la maison sounds slightly more general, while chez moi can feel a little more personal, but in this sentence either works.

A natural pronunciation would flow like this:

• En février → the n links into février
• parce qu’il sounds very smooth, almost like one unit
• et que is also linked naturally in fast speech

A rough pronunciation guide is:

ahn fay-vree-ay, zhuh rest soo-vahn tah lah meh-zohn luh swahr, parsk-eel feh ahn-kor frwah ay kuh lah nwee tom toh

This is only an approximation, but it helps show the rhythm of the sentence.