Temperatures on Blood Mountain range from the high-80s in summer to zero or even lower in the winter. The snowfall will be substantially higher on the higher elevations from 2000 to 4000+ feet.
There can many fair weather days in the winter, but they are not predictable. We have ridden Christmas and New Years. We have seen snow as early as Halloween. The Blizzard of 1993 dropped several feet of snow on the higher elevations in one day on March 13. We have seen snow as late as April.
WARNING The mountain roads can be extremely dangerous when ice and deep snow are present. REMEMBER If the road is getting bad it will only get worse as you head toward the higher elevations. This is no place to get stuck overnight in the winter.
Many summer afternoons bring widely scattered rain showers. Often the weather stations and web weather will indicate rain for the entire area. BE AWARE that you can still have nearly a full day of riding before the summer showers hit in mid-afternoon. And these showers are spotty …. not everywhere. Go 5 miles and you might be in the clear. They often dissipate in the late afternoon leaving several hours of good riding before dark.