"Chunks of snow"

We had a nice rain here last night, the first real rain of the season, but probably just an outlier. 
However outside of Mexico City....
from the LAHT

Thousands of vehicles were stranded for more than 12 hours overnight on a highway west of Mexico City when a hailstorm hit the mountain area that divides the capital from the Valley of Toluca, federal officials said Thursday.....

“While it is true that the road is open, it’s also true that chunks of snow, the hail, is there and we have to remove it,” Murrieta said.

The state road and the federal highway that link Mexico City to Toluca are more than 60 kilometers (37 miles) long, with the majority of the road winding through a mountain area.

Thousands of people spent the night on the highway in their vehicles, arriving at their destinations hours later.

Blankets, food, coffee and bottled water were distributed to some of the people stranded on the highway, officials said.

The worst stretch of the road was between the toll booths and Marquesa Park, where the accumulated hail reached up to 40 centimeters (16 inches).

“It was awful, we were more than 12 hours late in reaching Toluca on a trip that normally takes no more than an hour,”