# How to Count by Month in Excel

You can use the following formula to count the number of occurrences by month in an Excel spreadsheet:

```=SUMPRODUCT(1*(MONTH(A1:A10)=11))
```

This particular formula counts the number of dates in the range A1:A10 that occur in the eleventh month (November) of the year.

The following example shows how to use this formula in practice.

### Example: Count by Month in Excel

Suppose we have the following dataset that shows the sales of some product on various dates: Now suppose we’d like to count the number of dates by month.

To generate a list of unique month numbers, we can use the following formula:

`=SORT(UNIQUE(MONTH(A2:A15)))`

We’ll type this formula into cell D2: Next, we can use the following formula to count the number of dates by month:

`=SUMPRODUCT(1*(MONTH(\$A\$2:\$A\$15)=D2))`

We’ll type this formula into cell E2, then copy and paste it into each remaining cell in column E: From the output we can see:

• Month 1 (January) occurred 4 times.
• Month 2 (February) occurred 3 times.
• Month 3 (March) occurred 1 time.

And so on.