well 10 degrees south would put be around Half Moon Bay, CA which probably has one of the most monotone temps in the world, so no thank you, much rather have the extra 300 sunshine hours.
https://en.wikipedia.org/wiki/Half_M...fornia#Climate
This is how I would split up my sunshine.
https://en.wikipedia.org/wiki/Seattle#Climate
original: 69.8/108.8/178.4/207.3/253.7/268.4/312.0/281.4/221.7/142.6/72.2/52.9/2,169.7
percent: 25.0/38.00/48.00/51.00/54.00/56.00/65.00/64.00/59.00/42.00/26.0/20.0/49
addition: +50/+50.0/+25.0/+0.0/+0.0/+0.00/+0.00/+0.00/+0.0/+50/+62.5/+62.5/+300
revised: 119.8/158.8/203.4/207.3/253.7/268.4/312.0/281.4/221.7/192.6/134.7/115.4/2,469.7
percent: 42.90/55.46/54.73/51.00/54.00/56.00/65.00/64.00/59.00/56.73/48.63/43.63/56.39