A Temperature guide to World Cities (for Warm Weather Fans) :

[wavehunter007]

Originally Posted by nei

I think that's a good limit. Since I'm more interested in avoiding cold months than having hot months, and while I'm not the typical warm weather fan, I suspect warm weather fans would find those temperatures a concern. Perhaps a "warning" color for cold winters might be worthwhile. Your chart though.

Another reason I used 47 – 50 F as the cutoff was according to several climate textbooks…a monthly mean temp of 50 F/10 C is often the mark many resorts use as the start of their active season. A location that has a mean temp of even 10 C/50 F would likely have daytime winter highs of near 60 F/16 C – minimally warm enough for many outdoor activities for most people.

[ChesterNZ]

Originally Posted by wavehunter007

Another reason I used 47 – 50 F as the cutoff was according to several climate textbooks…a monthly mean temp of 50 F/10 C is often the mark many resorts use as the start of their active season. A location that has a mean temp of even 10 C/50 F would likely have daytime winter highs of near 60 F/16 C – minimally warm enough for many outdoor activities for most people.

At the lower end of the temp scale (24 hr mean in the 50s) I would say wind and sunshine become critical to comfort. Subtropical climates with dry winters would be far more comfortable at such temps than somewhere like Auckland.