Big Sleep in December

Does anyone have experience/beta for Big Sleep in mid and late December? When does the snow start to roll in and is the dome still climbable with a few inches? We're thinking of doing moonlight madness, but could settle for afternoon nap if its a bit wet.

I climbed it in April and there was a river running down the climb from snow melt. There is a fair amount of snow up there now from what I can see. You may have issues driving up to the crag as I imagine the road is snowy now.
Also, in the past they have gated the road up to Big Sleep for the winter, so you would have to walk ~ 7 miles up the road or drive in from the back (4 x4). However, the gate was broken in the spring, so perhaps the forest service lacks the budget to fix it, and it will remain open.

Chilkoot Meadow currently has 20 inches of snow

cdec.water.ca.gov/jspplot/j…