I only have 2WD. I live in FL where it rains I would say more than a little. I'm still alive. I also had a 4x4 liberty and never needed it for rain. I guess it is just how secure you want to feel. 4x4 Wrangler engaged = tank. 2WD Wrangler = mini-tank. 4500 lbs of mean Jeep is hard to hydroplain unless you're being an ass. If anything...take it slow and let the good times roll.
07 JKU Rescue Green with 3.5" RK Mid-Arm Flex w/ Bilstein 5100s, 5.13's, Eaton E-Locker, 35" MT Baja ATZ, 17" DC Torque wheels, Monstalined tub, Home-made front bumper with Smittybilt XRC-8 winch, Wild Boar rack w/ IPF 968 lights, K&N Intake, Gibson Exhaust.
Future Mods: 2wd-4wd conversion = completed!