Originally Posted by
Dan Druff
Weather on October 30 in Ensenada:
High 80, Low 57
The day before was almost identical.
With such moderate weather and not a large difference between the high and low, it is unlikely that the window busted due to sudden temperature change.
The windows break sometimes from rapid temperature changes (in the positive direction) due to 2 factors:
1) Heat expands the molecules in the glass, weakening it.
2) The air pressure in a closed car will increase if the car heats up, and this pressure (combined with the weakened windows) can cause the windows to burst.
However, while already uncommon in the first place, when it does happen, it's either when a car sits in the sun on a hot day, or when a car sitting outside on a cold morning rapidly heats up due to a quick rise in temperature (often combined with direct sun exposure).
For example, in 5000-foot-elevation type mountain communities, it is not unusual to see springtime highs in the low 80s and lows in the high 20s. So if you park your car overnight outside in one of these places, it drops below freezing, and then it heats up super rapidly (AND your car sits in the sun) in the morning, then a window burst wouldn't be a surprise.
However, on an 80/57 spread in Ensenada, not so much.