2. Measure outdoor DBT at the outdoor unit. This is the condenser in air temperature. 3. Measure suction pressure at the compressor and convert it to a temperature using a pressure-temperature chart.

Today, The New York Times publishes an interactive chart showing detailed temperature and precipitation patterns for 1,801 American cities and 1,334 other locations around the globe for 2015.

Homeowners in the south need to be alert to the damages of freezing and bursting water pipes when the outdoor temperature threatens to drop to 20 degrees Fahrenheit. Although 20 degrees Fahrenheit ...