There are 14 calendar variations (7 days of the week plus leap years). Some years October will have 5 Fridays, 5 Saturdays, and 5 Sundays. October 1999, 2010, 2021, and 2032 all have 5 Fridays, 5 Saturdays, and 5 Sundays. This looks like an 11 year gap, but October 1988 and 2043 do not have 5 weekends.
The last time there were five full weekends in October was in 2021. October 2021 had five Saturdays and five Sundays, occurring on the 2nd, 3rd, 9th, 10th, 16th, 17th, 23rd, 24th, 30th, and 31st. This alignment happens when October starts on a Saturday or a Sunday.
3 months had five Sat-Sun weekends in 2011: January, July, and October.
October 2010 contains 5 weekends.
Here is list of Months the have 5 Saturdays in 2011 January, April, July, October, December
There are 26 weekends from October 2012 through March 2013.
A 31 days month starting on a Friday.
2010
because of leap years, October has 5 weekends alternating between every 6 years and every 11 years. The next Octobers with 5 weekends will be 2021 and 2027.
Five days, not including weekends and holidays.
May typically has four weekends, depending on the year. If May 1st falls on a Saturday or Sunday, there will be five weekends that month. In any case, each May will have at least four weekends.
Well, there were 4 full weekends (Saturday and Sunday) and there was a Saturday at the end with no October Sunday (Sunday was November 1st). I would call it 4 and 1/2.
1999 I think it was 2009 since there were 5 Saturdays in that month October.