Date Errors from Custom Tags in PHP Script

I have a couple of custom tags not working in my trends-inc.php file from the Carterlake/AJAX/PHP template from

I’m getting incorrect dates for both Jan 2011 (and therefore 2011) record high heat index and maximum daily rain as can be seen at The custom tag for heat index I’m using is: $mrecordhighheatindexyear,$mrecordhighheatindexmonth,$mrecordhighheatindexday and for rainfall it is: $mrecorddailyrainyear,$mrecorddailyrainmonth,$mrecorddailyrainday.

Any suggestion why the dates are showing up as 02-Jan-2000 and 30-Nov-1999, respectively?