They are April, July, September, December.
April, July, September and December have five Sundays in 2018.
2012 will have 5 months with 5 Sundays: Jan., April, July, Sept., Dec. 2011 has 4 months with 5 Sundays: Jan., May, July, Oct.
In 2015, there are 4 months that have 5 Sundays. These months are March, May, August, and November.
2016 had 4 months with 5 Sundays.
5 of them.
Four months will have 5 Sundays in 2011. January, May, July, and October.
In 2032 there are 5 Sundays in February, May, August and October.
January, May, July and October of 2005 had 5 Sundays.
In 2008 there were 5 Sundays in March, June, August and November.
January, May, August and October in 2021 will have 5 Sundays each.
March June September December
In 2017, the months that had five Sundays were April, July, and September. Each of these months had exactly 30 or 31 days, allowing for the occurrence of five Sundays. Specifically, April 2017 had Sundays on the 2nd, 9th, 16th, 23rd, and 30th; July had Sundays on the 2nd, 9th, 16th, 23rd, and 30th; and September had Sundays on the 3rd, 10th, 17th, 24th, and the 30th.