January dew point temperatures are extremely low in northern areas of the U.S.because
A)there is an abundance of insolation to drive the condensation.
B)of the presence of frequent mid-latitude cyclones.
C)there is little insolation to drive the evaporation.
D)relative humidity values are uniformly high.

Question

Quizplus · Accepted Answer

Dew point temperature is the temperature at which air reaches saturation and water vapor condenses to form dew. In northern areas of the U.S. during January, there is little insolation (incoming solar radiation) to drive the evaporation of water on the surface. This results in low moisture content in the air and low dew points.

January Dew Point Temperatures Are Extremely Low in Northern Areas