4-6 inches (Page 2)

I used to joke that Peoria hired Atlanta for their snow removal plan. 

The plan as I observed it was:
1)  wait for the sun to melt the snow (fine for Atlanta, not so good in Illinois)
2)  let drivers smash it down (50/50 chance of melting it or freezing it solid for a month)
3)  spread salt
4)  save the blade for something important (not sure what, but they almost never had the blade within a foot of the pavement)

Cache Valley does a very good job with snow removal.  Trucks are out scraping at the first signs of snow. 

I learned to drive in Ohio in snow.  After moving to TX I thought driving in snow and ice was no big deal. Then I realized 99% of the other drivers on the road here have never learned how to drive in those conditions and they could take me out.

Plus, the road departments are not equipped to handle icy or snow covered roads here.

Yes, you just hit the nail on the head for why Texas is very dangerous when it snows... :D  I learned to drive in snow in both New England and Colorado.  I've driven on highways that have closed minutes behind me.  I know what I'm doing.  It would scare me to drive in the ice or snow here....

I lived in El Paso (I call it hEll Paso) for 8 years and the drivers there were horrible when the weather was anything other than hot and windy. It would snow once every two years, and they would act as though they'd never seen snow before in their lives. I learned to drive in Pennsylvania winters, and lived in Santa Fe, NM for a few years, so snow isn't a boogyman to me, but I was concerned about driving in El Paso with less than a quarter-inch of accumulation (which would be melted by 10 am) because of the way everyone else drove.

Oh yah, you started this thread talking about Texas. I shouldn't soil the rest of TX by bringing El Paso into the conversation. Sorry.