Compare your site with the demo-site. It should be the temperature trend.
Most of the times it should be between -1 and + 1.
The script compares “current temp” with “temp 15 minutes” ago.
But you WD file as uploaded contains 2 extra spaces.
All fields after these two spaces are misaligned and current temp is now compared to lowest dewpoint today.
Please update to the latest WD release as this is an old problem.
Or use clientraw.txt for your data.
Why do I always ask for the link to the site?
To check a lot of values with this script: http://micklehamweather.com/pwsWD/w34_module_test.php
One can check the calculated “Live data values” or the WDapi values with the field-names.
All the uploaded files, as long as they are in the default folders, can also be inspected this way.
And any individual script can be run with error-reporting on.
Wim