How to Sort Power Pivot Months and Years in Descending Order
Question details
The user needs a method to sort months and years chronologically in descending order within a Power Pivot table instead of the default alphabetical sorting.
- Product
- Spreadsheet
- Device & OS
- not provided
- Scenario
- Organizing and presenting time-series data chronologically in Pivot Tables.
- Observed behavior
- Periods formatted as text (such as MMM-YY) are sorted alphabetically by the application, causing chronological data to be displayed in the wrong order.
Ensure your base data contains actual recognized date values rather than plain text, and that you have access to the data model or helper columns.
Use Helper Columns and Sort by Column Feature
Create numeric helper columns in your source data or data model to force the text periods into the correct chronological sorting order.
When dealing with text-based date formats like 'MMM-YY', the data model reads them as standard text strings. By creating a background numeric key (e.g., Year * 100 + Month) and linking it to your text column, you can dictate exactly how the items are ordered.
Make sure your base date column is formatted as real dates, not text.
Add a new column for the Month Number (e.g., =MONTH(Date)) and another for the Year (e.g., =YEAR(Date)).
Create a Year-Month key column using a formula like =Year*100+Month (for example, October 2023 becomes 202310).
In the Power Pivot window, select your formatted text display column (e.g., MMM-YY), click 'Sort by Column' on the Home tab, and choose your new numeric sort key column.
Return to your Pivot Table, click the filter/sort dropdown arrow on the date field, and select 'Sort Z to A' (Descending) to display the most recent periods first.
Sort by Month Number for Month-Only Display
If you are only displaying month names without years, you can simply map the text to a month number column.
Easily Manage and Sort Pivot Tables with WPS Spreadsheet
WPS Spreadsheet provides powerful and intuitive Pivot Table features that make organizing, filtering, and sorting chronological data simple. It seamlessly handles complex date formats without requiring advanced data modeling.
- 1. Open File: Open your data file in WPS Spreadsheet.
- 2. Insert PivotTable: Select your data range and navigate to the Insert tab, then click PivotTable.
- 3. Group Dates: Drag your Date field to the Rows area. WPS will automatically group valid dates by Months and Years.
- 4. Sort Descending: Click the sort arrow on the Row Labels header and select 'Sort Descending' to view the latest dates first.
Frequently Asked Questions
Why does my Pivot Table sort months alphabetically instead of chronologically?
This happens when the dates are stored or formatted as text (e.g., 'Jan', 'Feb') rather than actual date serial numbers. The system reads them as standard text strings, which causes 'Apr' to be sorted before 'Jan'.
Can I sort standard Pivot Tables without creating helper columns?
Yes, if you use actual date fields in a standard Pivot Table, the software automatically groups them into Years, Quarters, and Months. You can directly right-click these grouped fields and sort them descending without complex modeling.
What if I only want to show recent months in my Pivot Table?
Instead of just sorting, you can apply a Date Filter on the row labels. Click the dropdown arrow on the date field, choose Date Filters, and set criteria like 'This Year' or specify a custom date range.
Does the 'Sort by Column' feature change my original source data?
No, it only changes how the data model displays the text column within Pivot Tables and Slicers. Your underlying source data remains completely untouched.
