When to Harvest?

I've been growing this thing since the beginning of July/Early June...
It's my second attempt and it's a female.. or else I think it is... sick and tired of grabbing from people so I decided to grow my own.

My question is, when I should harvest. The temperatures here are dropping to about 12 degrees at night, though it fluctuates and sometimes is warmer.

I live on the east coast.

Here are some pictures.

I have no idea what strain it is either.

Thanks.

First your little hairs will start to turn brown faster than fresh white ones are replacing them. Soon after, the tiny crystals on the surface of the bud will go from clear to cloudy, and then to amber. Harvest at anywhere from 10-40% amber- harvest sooner if you like 'up' highs, and later if you want to be sofa locked.
Nice work!