Background: On a bright sunny day in the summer, we typically expect it to also be hot, and on a cloudy day, we expect it to be cooler. But is this also true in the winter?

The graph is a scatter plot showing how temperature relates to light intensity measured in a unit called lux. The data were collected Mr. Lindsey’s Earth systems class last winter at Old Town High School between the January 1st and February 28th.

Data Source: Ed Lindsey, Old Town High School