There are two answers to this depending on when you start counting.
Answer 1: Starting in Nisan (as per Exodus 12:2 and Leviticus ch.23),
the sixth month is Elul. Roughly coincides with September.
Answer 2: Starting in Tishrei
Adar; or Adar I in a Leap Year. Roughly coincides with March.
It is the seventh month of the Jewish year, equivalent to Nisan of the modern Jewish calendar. As the Jewish calendar is different in length to the Gregorian calendar, there is not a directly corresponding month.
June
Yes (in the Jewish calendar)
It used to be on the Roman calendar but they changed it and now it's the ninth month.
The Jewish calendar doesn't have an equivalent to February. Months on the Jewish calendar do not line up evenly with months on the western calendar.Answer:The month of February roughly corresponds to Shevat.
the month September is known as "the seventh month" (after the roman calendar)
The Jewish festival that is celebrated every month is called Rosh Chodesh, which marks the beginning of a new month in the Jewish calendar.
The Roman Emperor named the month of September. It is named after the number seven because it was the seventh month of the calendar in use at that time.
Nisan
The week culminates in the seventh day, the Holy Shabbat (shabbat kodesh, abbreviated ).
Rosh Chodesh refers to the new moon which traditionally marked the beginning of each month in the Jewish calendar.
Germinal (french Republican calender search in wikipedia)