SnorVet- You should have no issue in your climate. I live in Salt Lake City on the mountian benches where we get rain, snow, mud, and salt for 6 months of the year.
My garage is not heated but the house heat usually keeps a garage significantly warmer than the outside temp. I have FreeFlow in the front 1/2 where I park a big truck and an SUV and FreeFlow works great! the slop that falls of the wheels and trick falls through the floor and out the door ( my garage is pitched). this makes for a really clean garage floor all season long. I can even wash my car in the garage during the winter
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My garage is not heated but the house heat usually keeps a garage significantly warmer than the outside temp. I have FreeFlow in the front 1/2 where I park a big truck and an SUV and FreeFlow works great! the slop that falls of the wheels and trick falls through the floor and out the door ( my garage is pitched). this makes for a really clean garage floor all season long. I can even wash my car in the garage during the winter


). (I just perfer a smooth surface, easier to clean). 