Number Of Day In Consecutive MonthsSeven months of the year (January, March, May, July, August, October, December) have 31 days. In terms of order of precedence this is (Month) 1, 3, 5, 7, 8, 10, 12.Four months (April, June, September, November) have 30 days and a precedence order, in terms of months of 4, 6, 9, 11. February has 28 days except in leap years when there are 29 days ie once every 4 years. So we can appreciate that groupings of months can differ in the average number of days contained. This calculator permits a quick grouping of consecutive months with totals and averages for comparative purposes.
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