To see your daily, weekly and monthly average for a certain date range follow these steps.
Tap the Totals tab on the bottom.
Tap the Averages tab on the top.
Tap the date range on the top. This will open a date picker page.
Select the date range you'd like to see your averages for and tap Save
By default your daily averages are selected and displayed across the top of each chart. This row will scroll to the left to display all of your fields.
To see your Weekly or Monthly averages select the Weekly or Monthly option on the Daily, Weekly, and Monthly options tab.
The chart details show your day of week averages for the date range selected.