A COLD 23°F !!!! 27/64 Day cold plunge.

27/64 day of cold plunge. Water temp 24°F , air temperature 34°F.
Give it a try it may improve your circulation.
Many of cold water therapy’s perks can be traced back to its effects on circulation. 
In the aforementioned study in the Journal of Athletic Training, researchers had 10 healthy adults undergo a 30-minute contrast water session with one lower leg submerged and the other above water. They found that contrast water therapy significantly improved circulation and increased oxygen levels in the submerged leg muscles, compared with the leg that wasn’t submerged. 
The circulatory system (also known as the cardiovascular system) pumps blood to the lungs to transfer oxygen via the heart to the rest of the body. The better your heart and blood vessels can perform these functions, the better they’ll be able to rid your body of waste. The end result? Healthier organs, muscles, and tissues, per the Cleveland Clinic.