Obligatory cold weather post

We're all torqued because of the temperature of an 18^th century woman's armpit.
The temperature scale that we use in the U.S. has, as one of its reference points, the body temperature of one Wilma Fahrenheit, wife of physicist Daniel Fahrenheit. The number at the other end of the scale, 0^°, is the freezing temperature of brine. Given the importance that we attach to this temperature scale, Fahrenheit used a goofy calculus to set the numbers that are so familiar to us.
The result is that, when the temperature falls to and below 0^°F, we think much more about the cold. Adding the wind, as we will this evening, the outdoors can become dangerous. Mercifully, I haven't had to spend long times outside in the cold, except by choice, for many decades. The homeless and wanderers, they really do need to find shelter tonight.
Last night we walked to and from a dinner at the church in our neighborhood. The air was calm, letting the cold settle at the low points of the road. It was like walking into a pool, the shock of the change in just 30 or so feet of elevation.
This evening, though, with the wind, the air gets all mixed up. There won't be much difference in the temperature readings from high places or low, but the wind will get us to the air temperature much faster.
The United States is the only country that uses the Fahrenheit scale and that needs to deal with such low numbers. To understand the Centigrade scale, folks often turn to this ditty:

Thirty's hot.
Twenty's pleasing.
Ten is cool.s
and Zero's freezing.

To which I humbly add:

Minus Ten is cold.
Minus Twenty has a bite.
Minus Thirty's ridiculous.
And Minus Forty's the same as Fahrenheit.