## How to sum or average values if dates in adjacent cells equal to specified month in Excel?

In many cases, you may just need to sum or average values in a column if dates in adjacent cells equal to a given month in Excel. As below screenshot shown, for summing or averaging values in column B when dates in the left adjacent cells are in April, how to achieve it? Methods in this article can help you.

Sum values if dates equal to specified month with array formula

Average values if dates equal to specified month with array formula

#### Sum values if dates equal to specified month with array formula

You can apply the following array formula to sum values in a column if the adjacent dates are equal to given month in Excel. Please do as follows.

1. Select a blank cell for locating the result, enter formula =SUM(IF(MONTH(\$A\$2:\$A\$6)=4,\$B\$2:\$B\$6,0)) into the Formula Bar and then press the Ctrl + Shift + Enter keys to get the summing result. See screenshot:

Note: In the formula, \$A\$2:\$A\$6 is the date range, number 4 indicates the month “April”, and \$B\$2:\$B\$6 is the value range you need to sum. You can change them as you need.

#### Average values if dates equal to specified month with array formula

This section will show you an array formula to average values if dates equal to given month in Excel.

1. Select a blank cell for locating the result, enter formula =SUM((B2:B6)*(B2:B6>0)*(MONTH(A2:A6)=D2))/SUM((B2:B6>0)*(MONTH(A2:A6)=D2)) into the Formula Bar, and then press the Ctrl + Shift + Enter keys to get the result. See screenshot:

Note: In the formula, \$B\$2:\$B\$6 is the value column you need to average, \$A\$2:\$A\$6 is the date range to average based on, D2 is the cell which contains the month number.

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