If I was to go in November it would be nov 8 to nov 14 or 15
I would be just concerned with rain
Crowds don't bother me
I would love to the Xmas season
I was there in last time in July 2009
It was in the the 70s then
Okay, cool! So it sounds like you have a good chance of being at DLR when the holiday season starts (more likely than not it will be 11/11/11 or 11/18/11 this year, and probably 11/9/12 next year, with a chance of 11/16/12).

And even if it is not in full swing yet, like if the season begins one week later than when you are there, you would definitely see some decorations going up and some holiday merchandise in the shops. The gingerbread cookies with mouse ears will already be sold. Haunted Mansion Holiday will be running. Gingerbread beignets will be available at Cafe Orleans.
But hopefully the season will begin when you're there so you can catch IASW Holiday and the Winter Castle, as well as the 'snow' on Main Street, the Christmas Fantasy Parade, the Believe...In Holiday Magic fireworks, the Reindeer Round-Up, etc. All of those things don't begin until the season officially begins.
As for November weather, of course nothing that happened last year has anything to do with what the weather will be like this year or next year on your trip - it's anyone's guess what it will be, really - but I can tell you that I was at DLR on
November 13th last year and it was well into the 80's. It was a warm November day. There are other November days that could be in the 60's and rainy, so I was kind of surprised that it was so warm!
Last year was kind of odd in that it seemed like the "Summer" weather took a long time to kick in, and it didn't really start to get super hot until late August/September (like 113 degrees hot!)...and then it was warm off and on all through the Fall and into Winter.
When I went back to DLR in December, on one of my days it was 90 degrees (in mid-December!), the next day was in the 80's, and then it dropped to the 70's!! Since then, we've had lots and lots of 50 & 60-degree days in SoCal this year. Right now it's only 65 degrees! And it's Spring! 90 degrees in late Fall/almost Winter and 65 degrees in Spring??!! What's wrong with this picture?

I hope you get to go in November!! The holiday season is just beautiful at DLR.