You talking snow and ice or just rain?? If it's snow and ice, I would consider getting a set of dedicated snow tires and another set of tires for summer. If it's just rain...then a soft compound tire with a directional tread would work well. depends on what you're budget is and where you live.
For me in WI, I have a set of snow tires on my stock 15in that I run in the fall and winter and for the rest of the year, i run a set of High performance summer only tires.
1996 Laser Red V6
Vortech S-trim 9 psi
T-lok 3.73, Steeda Tri-ax shifter, Eibach springs, KYB shocks/struts, Steeda bumpsteer kit with X2 balljoints, Steeda clutch quadrant with adjuster, Steeda rear lower control arms (uppers coming soon) 2.5in dual exhaust with H-pipe, Borla mufflers, 3in tips.
Personally i have had awesome luck with the Goodyear assurance Triple Treads. they rock in the rain and on pavement. Haven't tested them on snow yet but they have improved my wet traction immensely
VAPORTRAILS-- " I fire up the willing engine, responding with a roar, tires spitting gravel, i commit my weekly crime" Red Barchetta -- RUSH
"We all know that small cars are good for us. But so is cod liver oil. And jogging. I want to drive around in a Terminator, not the heroine in an EM Forster novel." Jeremy Clarkson
Tunable Induction CAI--Pypes Dual Exhaust--Rear GT Bumper--Rocker Panel Stripes--White Faced Gauges-- KONI Adjustable Struts/Shocks --KONI Springs(1.5 Drop)--
Lives with lots of snow up this direction. The Blizzaks are the best tires I've ever had on my car for snow/ice/slick driving conditions. I used to run a dedicated set of studded snow tires but the Blizzaks out perform them hands down. I'll be buying another set for my 00 this winter. Just remember, +1 with nintysixmustang, softer rubber compunds help traction in most slick conditions but they wear fast. So, Blizzaks for winter and spring and another set for summer or the Blizzaks will not last out the year.
This place makes me miss the days of the shop... sort of! and the information that I provide is based upon my experiences over the years and I do not profess to be any sort of pro any longer. I will do my best to help if I can and this constitutes advice only - no formal recommendations here unless I have just done the same thing to one of my rides in the past 6 months...