How much difference in sunlight do you get annually? (average, days, city)

[ColdCanadian]

I just realized today that Toronto gets approximately 40 times as much sunlight energy in summer than in winter.

How did I get this?

Well Toronto's U.V. in mid-winter on the brightest day is only 0.9,
but in summer the U.V. is typically 8-9.

In winter we average 2-3 hours of sunlight a day,
But summer, with 40% average cloud cover and 15 hours of daylight,
roughly 8-9 hours of sunlight.

So Toronto gets ten times the U.V. and four times as much hours of sunlight in summer.

*Just for grins, would anyone else like to find and compare annual sunlight levels?

** Maybe all this "extra" sun energy is why I don't mind it being cooler than I'd prefer.

[§AB]

Our winter UV is about 2, in summer it's 12 or 13.

average winter daily sunshine is about 4 hours

average summer daily sunshine 8-9 hours.

[Botev1912]

January - 2
February - 4
March - 5
April - 7
May - 8
June - 8
July - 10
August - 8
September - 7
October - 4
November - 3
December - 2

BBC - Weather Centre - World Weather - Average Conditions - Seattle

[ColdCanadian]

Originally Posted by §AB

Our winter UV is about 2, in summer it's 12 or 13.

average winter daily sunshine is about 4 hours

average summer daily sunshine 8-9 hours.

At least your sunshine hour get cut in half for winter.

*No wonder many people get SAD here.
*I don't get SAD, but it does seem bizarre the contrast between summer and winter for light levels... even fall to summer.

Daylight hours in winter is about 8 hours, summer is about 15.5 hours.
Based on this, clear skies are at least twice as common in summer versus winter.

[Ethereal]

In summer we can get as high as 13-14.

In winter we hover around 3-4.

[RWood]

Originally Posted by theropod

In summer we can get as high as 13-14.

In winter we hover around 3-4.

Eh? At Sydney Aero June mean is 6.0, July 6.6 and August 7.8, with August being the relatively sunniest month of the year with 72% of the astronomically possible ...

[Mac15]

12 hours

[Mac15]

Originally Posted by §AB

Our winter UV is about 2, in summer it's 12 or 13.

average winter daily sunshine is about 4 hours

average summer daily sunshine 8-9 hours.

Now please do not have the audacity to ever rant about winter daylight hours!

You do NOT have short or even winter days. I have just 7 hours of daylight in winter. Take that and smoke it.

[kronan123]

couldn't find any good data on this.

from SMHI:s homepage
"During summer, the UV index in Sweden is 4-7 and during the dark season (Nov-Feb) usually below 2"

[Ariete]

Originally Posted by kronan123

couldn't find any good data on this.

from SMHI:s homepage
"During summer, the UV index in Sweden is 4-7 and during the dark season (Nov-Feb) usually below 2"

Above some 52 degrees the lowest UV is in midwinter less than 0.5. UV 1 will reach Longyearbyen during these next days.