Can you help with this riddle?

Question

Ok here it is:
Jack and Jill travel to four different states Vermont, California, Utah, and Colorado while in these states they do one activity rock climbing, Biking, Rafting, or Canoeing they also go for four different reasons a lecture, to collect minerals, a PBS interview, and a conference, They go during the months of July August September or October. Here are the clues:

1. The state they visited for a lecture was visited at some point before Colorado
2. The trip to Vermont is not the one in which they went rock climbing
3. They went rafting during the trip that they collected mineral samples
4. They went to California exactly one month before the trip in which they went biking
5. They went to a conference at some point before, but not the month immediately before, they made a trip to be interviewed by PBS
6. They went canoeing during the trip to Colorado. They did not travel to Colorado for the PBS interview.

Any thoughts?

Answer 1

In July, they went to Utah, attended the lecture and went rock climbing.
In August, they went to Colorado, attended a conference and went canoeing.
In September, they visited California, collected minerals and went rafting.
In October, they were in Vermont to be interviewed by PBS and went biking.

Am I right? Got any more?

Answer 2

Good one, really hard.
They went to Utah in July for a lecture and went rock climbing,
They went to Colorado in Aug. for a conference and went canoeing,
They visited California in Sept. to collect minerals and went rafting,
They visited Vermont in Oct. for the PBS interview and went biking.

Answer 3

My thoughts are that

July=California, canoeing, lecture
August=Utah, rafting, Collecting Minerals
September=Colorado, Rock Climbing, conference
October=Vermont, biking, PBS interview

But I'm not really sure..
Those are just my thoughts...