Weather

What is a "Halo"?

Have you ever seen a single ring of color around the sun or moon?

It is called a halo, and it occurs more frequently in nature than a rainbow.

When the sky is draped in a high, thin overcast of cirrus clouds.

The six-sided ice crystals that make up those clouds act as the prisms that separate the sun's light into colors.

» More Homework Help Questions


Interactive Radars

Regional Headlines

This Week's Circulars

Regional Radar Image

Live Traffic Cameras

Cameras provided by PennDOT

Historical Averages

High Low
Current 72°F 56°F
Average 73°F 51°F
Record 90°F May 24, 1936 33°F May 24, 1926