Conditional formatting when the measure used for formatting contains WEEKNUM

Anonymous 

I messed with it a bit and your format measure should work.  I did do a different Avg 10w measure:

Avg 10w. claims = 
VAR _EOPW =
    CALCULATE ( MAX ( Dim_date[Date] ), Dim_date[WeekNo] < WEEKNUM ( TODAY (), 2 ) )
RETURN
    CALCULATE (
        AVERAGEX ( VALUES ( Dim_date[WeekNo] ), [ClaimCount] ),
        DATESBETWEEN ( Dim_date[Date], _EOPW - 69, _EOPW )
    )

 Take a look at my attached sample, see if that helps.  I used your color measure as is to format my ClaimCount field: