Miami saw a low of 50 degrees. The average low in Miami is 60 degrees. Tamiami had a low of 45 degrees and Pinecrest had a low of 48 degrees. In Broward, Coral Springs and Davie had lows of 47 degrees, Sunrise had a low of 49 degrees and Hollywood had a low of 48 degrees. The Keys had lows in the upper 50s.

That could mean people should watch for cold-stunned iguanas. Florida Fish and Wildlife Conservation Commission officials said iguanas can become immobilized or sluggish when temperatures hit between 40 and 50 degrees. Longer cold snaps with overcast skies that prevent basking for warmth can be deadly to the cold-blooded invasive species.

Animals in South Florida bracing for the coldest temperatures in two years. Zoo Miami's Ron Magill says they're doing all they can to keep their furry friends warm. Afternoon highs will be in the 60's with overnight lows in the upper 40s and low 50s.

The coldest air of the season, so far, arrives on Wednesday morning with lows falling to mostly the upper 40s.

A strong cold front is approaching South Florida. Here's when it will get here and what temperatures you can expect.