bill impacts?

I haven't logged on to my PSE account for a while - probably becuz i was so discouraged everytime i saw the bill going up, no matter how hard i try to save energy at home. Tonite, i found that the bill FINALLY went down for last month - so i was really interested to see why ;) after logging into my account, i found a lot of useful information now available on the PSE website. it has this section called "bill impacts" which do a quick and easy-to-read comparison of your current bill versus your last bill...

Your energy charges were $ xx.xx lower for this bill.
Your gas usage decreased for this bill.
...
...

and the most eye-catching one is

The weather decreased your bill by $16.00 - $27.00.

hmm... interesting!