At that temperature we were iffy if we would be alive then. 

There is a better standard for best practice that includes:- Taking temperature of people.

Sheriff won't evict if it is below that temperature.  

I had a septic system on a multi family rental in New York State.. it freezes during extreme temperatures and sometimes backs up.

It never occurred to me that I would have to pay for the replacement, but the tenants are now asking if I could pay, because it might have been caused by, according to them, an act of god (temperature).

@Bret Weigel some people will leave the temperature high during the day, then get home and crank it down 10 degrees and expect it to be instantly cool.

(Lake Shasta, Whiskeytown Lake, Sacramento River) From "Best Places: July is the hottest month for Redding with an average high temperature of 96.9°, which ranks it as warmer than most places in California.

They canvased the whole city taking temperatures.

For example, my gas gun from the factory was setup for 200k btu's. my heater is only 130k btu, so you have to follow the directions and set the gun to match the boiler rating. also, if you are dealing with steam, be careful as steam boilers don't so much work on temperature, but rather pressure.

Here are just a couple less considered items:- We specify minimum and maximum temperature.