When is your sunniest and cloudiest time of year where you live?

[srfoskey]

Sunniest: Jun-Aug with 75%+ possible sun
Cloudiest: Nov-Feb with <65% possible sun

I'd kind of prefer it to be 10-20% cloudier year-round.

[Ethereal]

Sunniest: Aug-Sep (244.9/72% and 237.0/66%, respectively)

Cloudiest: Now this is a tricky one. The lowest sunshine percentages of the year are recorded in January and February (53/54%) with sunshine hours being 235.6 and 202.4, respectively. The lowest sunshine hours, though, are in May and June (195.3 and 177.0, respectively), despite having around 60% sunshine percentage.

[Walshie79]

Those percentages really show how dull Britain is, 60% seems to be about the maximum that's ever been achieved round here. 50% is pretty rare and confined to the spring and summer.

Going by (day length at midmonth x no. of days in month) to get the maximum possible, I think the sunniest months by percentage at Shawbury (about 6 miles away) were:

August 1995 60.02% (273.5 hrs, maximum 14.7x31=455.7)
June 1957 58.01% (292.9hrs, max 16.83x30=504.9, sunniest month by hours on record)
July 1955 57.27% (289.9 hrs, max 16.33x31=506.23)

The last month to exceed 50% was April 2015 (222.8 hrs for 53.24%). For dullness, the dullest month on record was January 1996 (11.5 hrs, 4.52%), though July 2010 with 17.01% (86.1hrs) was appalling for a midsummer month.

[Count David]

Denver, CO

It is pretty constant throughout the year, we do not have a month with less than 60% sunshine.

Summer afternoons are very often cloudy, but summer mornings are not.

We usually have one really long stretch (like one week, would be considered long for here) of no sun per winter.

[theedgeoflight]

Cloudiest....April
Sunniest...August

[Baba_Wethu]

Originally Posted by theedgeoflight

Cloudiest....April
Sunniest...August

What? I thought you lived in Western Minnesota? Both Minneapolis and Fargo have 50% more sunshine in April than November and December.

[SOON2BNSURPRISE]

Here on the coast in California we have what we call May Gray and June Gloom where it is cloudy and foggy for most of those two months. No sun for those months, or very little. Usually we get our sun back by July 3rd, just in time for July 4th and the Fireworks, although a few years the fireworks shows were a blowout as well. Can not see anything in the fog.

Things warm up in mid July and are hottest around mid August on up to October. Sometime in October and again in February we will get the Santa Anna winds bringing the heat off the desert and blowing everything out to the ocean. I love that time of year as the sky will clear and you have the clearest view of the Channel Islands off the coast.

[Joe90]

Originally Posted by Baba_Wethu

Unless you live in China, summer or spring is pretty much guaranteed to be the sunniest...

They can also be the cloudiest, as in my climate, which has late spring/ early summer as the cloudiest months.

[Noodleman556]

Sunniest- Dec/Jan (11.5 hrs/day)
Cloudiest- June/July (5.9 and 6.1hrs/day)