Diurnal Weather Averages

Note: Available as an Autodesk® Subscription Benefit.

When reviewing an Autodesk® 360 Energy Analysis in the Results and Compare dialog, this chart tracks annual averages for temperature and solar radiation. The y-axis on the left is the temperature, and the y-axis on the right is the solar radiation in BTUs per hour per area.

Parameter Description
Temperature - Dry Bulb Daily averages of dry-bulb temperature for the entire year.
Temperature - Wet Bulb Daily averages of wet-bulb temperature for the entire year.
Diffuse Solar The portion of solar radiation that is scattered downward in the atmosphere.

On clear days, diffuse radiation is about 10% of the total solar radiation reaching the earth's surface. On extremely overcast days, the portion of diffuse radiation may be close to 100%.

Direct Solar The component of solar radiation reaching the earth's surface from the direction of the sun that has not been refracted, reflected, or scattered.