Found 6 of these spiders on the same night, never seen them before. North California

[NorCal1111]

I'm in North California, near the San Joaquin Valley and the temps here are averaging high 90s at the moment. I've been here over 15 years and haven't seen this sort of spider here before and suddenly has 6 of them appear within an hour or so. Any ID?

Pics: https://imgur.com/a/RxImU

 

[RTTB]

That's one badass looking spider whatever it is.

 

[NorCal1111]

That's one badass looking spider whatever it is.

... That's not what I was hoping to hear if you're being serious.

 

[Xafron]

... That's not what I was hoping to hear if you're being serious.

He was just saying that you found a really cool spider.

 

[chanda]

That looks like it might be a mouse spider (Scotophaeus blackwalli) - not to be confused with the Australian mouse spider (Missulena sp.) which is a totally different kind of spider. Scotophaeus blackwalli is one of the Gnaphosidae (ground spiders) and is not dangerous to people.

Comparison pictures:
http://bugguide.net/node/view/931405/bgimage
http://bugguide.net/node/view/434284/bgimage
http://bugguide.net/node/view/641135/bgimage