Completely depends on the placement, site, what the user is likely to be wanting... Care to share more info?
1000 visitors isn't really all that many, especially not enough to draw big conclusions.
It can vary a lot from day to day, month to month.
For comparison though, a site I run gets around 2,000 visitors a day and the adsense on the site makes about $40 a day.
Just to throw some more info out there, I get 900-1800 unique visitors for 4000-8000 pageviews. I get less than $1.50 a day but all of these ads are run on a forum. I believe that forums have notoriously poor CTR as mine is under half of a percent.
I would die of happiness if I could pull in $40 a day.
It can vary a lot from day to day, month to month.
For comparison though, a site I run gets around 2,000 visitors a day and the adsense on the site makes about $40 a day.