Historical temperature data are available from various sources, including the National Weather Service and Weather Underground. The National Weather Service reports the high and low temperatures and number of degree days for each day. Weather Underground does not report degree days, but has data for more locations. Analysis Tips and Techniques (1) Analyzing gas and electricity use usually is fairly straightforward because most buildings have monthly metered data. Fuel oil often is ...

Register for Complete Access (Valid Email Required)

By registering on HPAC Engineering now, you'll not only gain access to Analyzing Building Energy Use, you'll get exclusive access to a large archive of premium content.

Already registered? here.