Measure or column that returns 5 year average for month - using different year ranges

Hi FLHound ,

Please try:

Here's the example data I created.

First, create a Year column and a Month column:

Year = 'Table'[Date]. [Year]

Month = 'Table'[Date]. [Month]

Create a Calculated column to rank the years for each month:

YearRank = RANKX(FILTER(ALL('Table'), [Month] = EARLIER([Month])), 'Table'[Year],,ASC,Dense)

Create a MEASURE to identify the maximum year for each month.

MaxYearPerMonth = MAXX(FILTER(ALL('Table'), 'Table'[Month] = MAX('Table'[Month])), 'Table'[Year])

Create a calculated column to identify the corresponding Rank of the maximum year for each month.

MaxRank = CALCULATE(
    MAX('Table'[YearRank]),
    FILTER(
        ALL('Table'), FILTER(
        'Table'[Month] = EARLIER('Table'[Month])
    )
)

Finally, create a MEASURE to filter out the largest years and then average them.

Avg = 
AVERAGEX(
        FILTER(
          ALL('Table'),
            'Table'[YearRank] >= 'Table'[MaxRank] - 5 
            && 
            'Table'[YearRank] <= 'Table'[MaxRank] - 1 
            && 
            [Year] <> 'Table'[MaxYearPerMonth] 
            && 
            'Table'[Month] = MAX('Table'[Month])
        ),
        'Table'[Value]
    )

Put it into the visual object to display, the page effect is as follows:

The pbix file is attached.

If you have any other questions please feel free to contact me.

Best Regards,
Yang
Community Support Team

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