сначала было очень тепло , но по се

сначала было очень тепло , но по середине лета стала не много прохладнее

Результаты (английский) 1:

at first it was pretty warm, but by mid-summer became not much cooler

Результаты (английский) 2:

at first it was very warm, but by mid-summer, has become not much cooler

Результаты (английский) 3:

at first, it was very warm, but in the middle of summer has become much cooler