Warmer at night than day and extreme diuranl (climate, warmest, average)

[twisterfan22323]

What would it take for weather to be warmer at sundown than sun up. Like right before sunrise being the warmest part of day and around sunset or early evening being the coldest? Like an average 'daytime' temp of 44 and avg 'nightime' temp of 68 for a spring month? Could a planet have such an event?

On planets in space, what would cause an extreme diuranl temperature difference like an average high of 50F and average low of -20F for like January or an average high of 93F and average low of 8 for like April? or like an average June high of 65F and average june low of -15F. Or an average high of 117F and average low of 12 in October?

[dunno what to put here]

Here, it's quite common for the highest temperature of the day to occur at night, say the temperature rises after the sun has set and peaks just before midnight, or for the temperature to be higher at night and then slowly fall during the course of the day. It's usually because of weather fronts, increase in cloud etc.

[B87]

It usually happens between Nov-Jan, it's unheard of in the summer. I can remember winter days with 'highs' of say 12C and 'lows' of 14C.

[Patricius Maximus]

Originally Posted by twisterfan22323

What would it take for weather to be warmer at sundown than sun up. Like right before sunrise being the warmest part of day and around sunset or early evening being the coldest? Like an average 'daytime' temp of 44 and avg 'nightime' temp of 68 for a spring month? Could a planet have such an event?

Since being on the nightside inevitably involves a great cooling influence, that would be difficult to do. However, there are many examples of warm nights/cool days occurring on Earth, although only as one-offs and not as an average. The way this occurs on Earth is through cloud cover, which suppresses the diurnal range, plus a nighttime warm front or a daytime cold front coming through.

On a planetary scale you would do well to create a thicker atmosphere and shorten the day/night cycle. This would suppress the pre-existing daily range. If cloud cover was the norm there then it would suppress daily range further. Then the warm/cold flow from weather systems would dictate the highs and lows of the day. While this would essentially be random, it's possible that morning highs could be more common.

An alternative possibility is to have a thick air/short days/cloudiness but to also have some sort of "daily monsoon" or something analogous to a sea breeze, in which the flow of air and the air currents creates an intense cool flow during the day and an intense warm flow at night. This may operate something like Cherrapunji's airflows that create daily morning thunderstorms, instead of the expected afternoon ones.

On planets in space, what would cause an extreme diuranl temperature difference like an average high of 50F and average low of -20F for like January or an average high of 93F and average low of 8 for like April? or like an average June high of 65F and average june low of -15F. Or an average high of 117F and average low of 12 in October?

This would be easier to do than reversing the daily cycle. While what drives high daily range on Earth isn't completely explained, it helps a lot to have thinner air then the Earth and low humidity. Mars is an example of this; it's typical for daily ranges there to be >100F. Conceivably an in-between can provide high range and habitability, such as a 0.3-0.5 Earth mass planet. The axial tilt also provides a sun angle that is optimal to stimulate high daily range and a degree of seasonality. A really good site for the weather you're looking for would be on a planet with thin air, low humidity, and axial tilt of about 35 degrees. A site located at the 45th parallel in an interior would make the most of all of these factors, just as they do on Earth today, only it would produce much more extreme results than, say, Yellowstone or Bodie.