I've had my red top in my truck for about 3 years (after sitting for more than a year not being used, long story).
I know Boston doesn't get as cold as where you are, but I've had no problems.

Just put one in my sentra after I killed it's battery by leaving the DOME light on for 5 hours - jeesh.
The starter spins like a top now. I know I won't have problems starting in the winter with it.

Main thing is the CCA on the batteries. The more you have, the easier it will be to start your vehicle.

1986 Pickup extracab longbed "Woody edition"
SAS - 33's, 5.29's, lockright rear.

02 IS300 SportCross - my "DD"
94 2wd v6 extracab
04 Outback Wagon- wife's/family car