Sunshine From Dawn Till Dusk?

[Summer of 95]

On the climate-uk site there is a note that a location called Bramham in Yorkshire recorded 8.0h "bright sunshine" on

January 18th, when according to sunrisesunset.com the length of day on that date at that location (which Googling says is in West Yorks, climate-uk in N Yorks) was 8 hours and 5 minutes- sunrise 0813 and sunset 1618! Coordinates I used were 53.9N and 1.35W.

That is what I would call unbroken sunshine!

[Terminal Moraine]

I assume they're using an electronic sunshine recorder and this highlights the discrepancy between electronic and the old Campbell Stokes recorder. The Campbell Stokes would not start recording until the sun was a few degrees above the horizon and would stop recording when the sun was within a few degrees of disappearing below the horizon.

It also makes me wonder if their recorder requires slight adjustment as, in my experience, the sunshine within a few minutes of sunrise and sunset is not bright enough to be classified as 'bright sunshine' as per WMO definition.

Having said all that it's evident that the day in question was sunny from beginning to end.