Celsius temperature is easy for an American to learn. The way to success is NOT to convert, but to get used to interpreting Celsius readings. Zero degrees C is the freezing point of water, so ice forms--or melts---at 0 C. Single numbers to teens are chilly to cool. Room temperature, or a comfortable day outdoors, would be in the low 20s. Over 30? A very warm to hot summer day. Normal body temperature is a toasty 37. Water boils at 100.

Paul Trusten, R.Ph.
Public Relations Director
U.S. Metric Association (USMA), Inc.
http://www.metric.org