. How would you feel about 2x09 as being November 2nd, due to it being the Mayoral Election Day in Smallville? Kansas City had a mayoral election on this date so it would fit. The only issue is it needs to be 30 days since 2x08. That episode ended on a school day and 30 days from the 2nd would be October 3rd (Sunday). I think a workaround is the end of 2x08 and the beginning of 2x09 being in the early hours of October 2nd (Saturday). The actual episode just mentions it's a month later and the 30 days come from the title, so I think it's close enough.
2x08- October 1st-2nd (it isn't said exactly how much time has passed since 2x07 and I think a few days are possible. Also, Sarah mentions it's been a week since her party, Sunday-Friday is close enough).
2x09- October 2nd, October, November 2nd.
Edit: This actually works out perfectly. In 2x11, Lois tells Clark he was gone for 33 days. If you include October 2nd as Day 1 then Day 33 would be November 3rd. I have 2x11 as being November 2nd-3rd, a perfect fit.