Help! Bridesmaids Dresses

So, the realization hit me that I'm getting married in November.

Not July,

or August

but November.

Seattle, you are cold in November.

(and all year round)

I originally wanted my bridesmaid to wear mismatched neutral dresses, hoping they'd each pick something out individually that they really loved and could potentially wear again because let's face it, when us brides pick out the bridesmaids dresses ourself and say "Oh, for sure, like they can TOTALLY re-wear this," they really won't re-wear it will they?...because more than likely it's an ugly dress. 

(Yes, the truth oftentimes stings.)

Anyways, after looking at semi-cute bridesmaid dresses I gave up. I just want them to wear something they like. Easy peasy. I decided on choosing a neutral color palette and letting them choose color, style, fit, price range, etc. that best suits them. Something similar to these pinterest finds.

Ahh, and then I remembered --November is cold.

and some of my ladies may prefer to wear long dresses that are a) warmer and b) don't show off their blindingly white November legs. Maybe something like this.

So what do you think? I feel like other than the color palette, the bridesmaids need to also have the same length dresses. They can still be mismatched --but similarities in length and color coordination are important, right? or no? 

(Wait say that again? Oh yes, I should probably ask my bridesmaids myself. You're so smart. I'll go do that right now.)

**UPDATE: If you're stopping by from Pinterest and would like to see the bridesmaid dresses I decided on, go here!