For all conditions I'm a fan of the Pasela TourGuard 32mm. I've used them on everything from smooth paved commuting on the MUP to a 300k which was a mix of chip-seal and 25k of loose gravel, to a 400k where it rained for the final 110k.
Even in a foggy drizzle coming down a 3500', 25km long, winding mountain descent in the dark... I never worried about my tires.
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"I feel like my world was classier before I found cyclocross."
- Mandi M.