We're not talking about dark conditions here, just
your average overcast day in Scotland.
Not exact matches
On an
average day, the sky is clear / mostly clear 23 % of the time, partly cloudy 29 % and cloudy /
overcast 39 %.
On an
average day, the sky is clear / mostly clear 21 % of the time, partly cloudy 26 % and mostly cloudy /
overcast 43 %.
On an
average day, the sky is clear / mostly clear 24 % of the time, partly clear 29 % and cloudy /
overcast 38 %.
On an
average day, the sky is clear / mostly clear 39 % of the time, partly cloudy 31 % of the time and mostly cloudy /
overcast 22 % of the time.
This is with
average weather for Billings — you can, of course, have full
overcast days with very little production.