This is a record of changes made to the section of NIWA's website relating to our analysis of New Zealand temperature trends.

The spreadsheet, graph and trend for the 'seven-station' series temperature data is updated each year. All raw data can be downloaded from NIWA's climate database, CliFlo:


Changes December 2010

Introduction page

A new paragraph was added to mention and link to the review process and changes section.

Previous version

'Seven-station' series page

This has been broken up to have separate reference and adjustments pages.

View the old 'seven-station' series page.

Spreadsheet of the 'seven-station' series temperature data

Replaced with an updated version, with a few minor changes as a result of the BOM review.

Previous version of the spreadsheet (XLS 58 KB)

Note that all raw data remains unaffected and is available for download from CliFlo.


Schedule of adjustments

This PDF has been replaced by seven different PDF documents, one for each of the locations. 

See the seven different PDF documents

See the old Schedule of adjustments.

Hokitika adjustments

This has been updated to match the format of the other six location documents.  

View the old Hokitika Adjustments (PDF 416 KB)

Changes July 2010

Seven-station temperature data spreadsheet

The spreadsheet was updated to correct a historical data entry error for one location for a month in 1910.

A number of other changes were made in the climate database:

  • digitising small amounts of data from early last century previously held in paper records in Wellington and Nelson
  • creating two station numbers for Hokitika to reflect the fact there were two sites. 

Full technical notes on those changes are here.