Looking at the graph at The National Weather centre, it would seem that the latest 'Winter storm' only produced about 4 inches of new snow accumulation! That's a bit of a let down and looking at the latest image, seems about right!


Courtesy of the Yosemite conservancy

The January Weather summary from Yosemite NPS doesn't make good reading.

January Weather Summary
New Snow: 10 inches (historical average 61 inches)
Snow Water Equivalent: 0.48 inches (historical average 5.05 inches)
Average High Temperature: 41.9°F (historical average 40.2°F)
Average Low Temperature: 12.5°F (historical average 10°F)
Average Temperature: 27.2°F (historical average 25.4°F)

Dave