I am trying to get a weekly average from a temperature column. The excel
spreadsheet has a months worth of dates and an average for each day. I found
the weekday formula and can convert weekdays to a number from 1 thru 7. From
that I want to use the IF logic formula that day 7 it would average backwards
7 days (cells). There might be an easier way to do it but getting the syntax
right is also a problem. Any help would be appreciated.

Hi Craig,

Assuming your data is in column F:
put this in G7
=AVERAGE(F1:F7)
and drag down as far as is needed, the cell references
will update automatically as you drag down.

HTH
Martin