When driving in adverse conditions the proper speed to travel is?

Answer 1

When driving in adverse conditions, the proper speed to travel is the speed necessary to promote safe travel. A person should slow down during rain, snow, and icy conditions. A person should travel at a speed they feel comfortable that is under the speed limit.

Answer 2

A good rule of thumb is to drive slowly enough so that any obstacle that suddenly comes up can be avoided by braking if necessary. For example, you often hear "Don't drive beyond your headlights" - what this means, for example, is that if your headlights can illuminate something 300 feet away, you should be able to stop within 300 feet. In rain or snow, because stopping distances are much longer due to decreased traction, you have to drive even slower - 60 mph on dry pavement during the day may need to be reduced to 25 or 30 on snowy or icy roads. So the big answer to your question is, "No faster than a speed at which you can control your vehicle should an emergency arise which forces you to take evasive action." That may be as slow as 10 miles an hour.