I cycle down to 40f or so F rain with a pair of neoprene cycling rain gloves. They come in various thicknesses, and considering there is always a 15-30mph headwind I feel they work well. That being said I am normally working pretty hard on purpose to keep warm, and am not out in such weather more than a few hours.
Had to Google, Bike Riding Rule 9. Just finished reading the 82 rules. Wow, they prescriptive. Might have to agree that Rouluer meets or exceeds rule 9.
If I were to edit rule 12 from bikes to tents. I am at S-1.