Temp today is 78 to 80 in mid afternoon now like 75 at 6 pm and rainy.
During the winter nights that get to high 50s next day has still gone up to 70s /80s . Granted some days it has stayed in 60s during day but rare and usually Dec to Feb a handfull of days that happens.
The iguanas I have seen on cold night have been by lake shore or few feet out resting on floating plants. The water here ESP canals stay warm all yr long . The cichlids will go deeper and avoid the shallow cooler areas.
Just like last year when night temps drop below 70 day after day my back yard goes from countless anoles-house geckos -skinks,etc to very very few till March comes. In theory they dont hibernate but they sure dissapear.