Hypothyroidism. I don't know what desert you are from but I used to live in Arizona, and it never gets cold there in the summer at night. There are deserts in Anartica! In other words, when the sun is present, the deserts are hot, but once the sun starts setting, the region … What I want to know is if it was at first too hot to sleep… how did you manage to wake up from your conscious non-sleep state? Anonymous Answered . DESERTS ARE COLD AT NIGHT:Because of the lack of water in the ground, and little water vapor in the air, most deserts can get quite cool at night. How do deserts become cold at night? Might be different with an overcast, cloudy sky. See new PNAS article: http://hockeyschtick.blogspot.com/2014/11/new-paper-changes-fundamental.html Answer Save. It was hot during daytime and cold during nighttime: long sleeves in a medium sleeping bag plus blanket. Look at instantaneous power, multiply by time. moist air cools slower than dry air. To look at this from a physics point of view - deserts are regions of low or very low humidity. What Are the Steps of Presidential Impeachment? Cold is relative. The very dry air of the desert holds little moisture and thus holds little heat; thus, as soon as the sun sets, the desert cools considerably. As there are no trees and water in the deserts, there is no source of these to keep the temperature warm. Why deserts are hot. Not all deserts get cold during the night. Deserts are places with high pressure where the air sinks and, therefore the clouds evaporate by the adiabatic effect of a higher pressure. During monsoon the day to night temp difference can be as low as ten degrees. At night, the sun no longer heats the desert and the heat from the day doesn’t stay trapped. When returning from sea, a red navigational buoy should be passed in what manner? Halloween’s over but tomorrow I will scare a few creatures of habit with that prospect …. Much as your dedication to solving the riddle of ‘climate change’ are appreciated, Steve, it would appear you had other research in mind on this particular field trip. Geniuses like yourself otherwise have to explain how the temperature in Dallas goes down in the overnight hours in summer … WHEN OUR WINDS ARE FROM THE SOUTH FROM THE GENERAL DIRECTION OF HOUSTON! In the 1970s, the Sahel strip that stretches along the … So the diurnal temperature range can change in two ways. No clouds to keep the heat in the lower atmosphere. We were surprised how wet (beacuse of the dew) everything was in … Saying that all weather is caused by greenhouse gases is like saying that all weather is caused by electrons. Then around midnight or so, you can wind down and get some sleep and get some good sleep because the temperature is good sleeping weather. Phoenix has a well-deserved reputation for being one of the hottest cities in the United States. Sands have a tendency to absorb heat quickly and release it slowly. 9.9 x 9.9 x 1.79 estimate; how is the message conveyed? There is nothing to stop the thermal energy (heat) from escaping back into the atmosphere. That is a different discussion. Also, humidity might be a greenhouse gas, but most of its effect on weather is unrelated to this fact. Why are deserts hot at day and cold at night? Phoenix is NOT humid! Temperate regions lie between the polar regions and the tropics. Tweet. I think it was a ‘multiple guess-choice rhetorical’ question: lack of greenhouse gas H2O (cloud / humidity / etc). ( Log Out /  'The warmth of the day was starting to ebb away into space and the sun was starting to set like a giant red burning ball in the west. Why is the desert so cold at night? Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. You quit worrying about your beer supply. But the coat might slow down the feeling of cooling if it has a large thermal capacity. The daily variation in heat content changes. If I was to use the differences between deserts and tropics during daylight hours to claim CO2 cools, I’d be rightly chastised. Your thyroid hormone levels may be low. The desert, when night falls, becomes VERY cold especially the driest deserts: the Sahara, central Australia and where I lived once up on a time, Death Valley! Most deserts have very low temperatures at night. The very dry air of the desert holds little moisture and thus holds little heat; thus, as soon as the sun sets, the desert cools considerably. This is the reason why the desert remain hot in the day and cold at night. Eh, yep! Don’t forget the visibility, it often goes down with humidity. Dear Tom, How can the desert be so hot during the day and yet get so cold at night? When we went to bed, it was too hot to sleep, and when we woke up it was too cold to sleep. (Which, BTW, generally runs hotter than Dallas. In Yuma I’ve seen the relative humidity over 70 percent first thing in the morning. Even in a hot desert it can get very cold at night. To give an example in Scotland, with cloud cover the IR thermometer reads around 6C, without cloud, it reads about -40C. Most are not. ‘Sandman’ Steve is again describing what happens AT NIGHT in desert climes vs tropical humid climes. Mar 17, 2016 at 6:13 PM . These deserts are found in high, flat areas, called plateaus, or mountainous areas in temperate regions of the world. 1. Studying mutual heat exchange between two bodies? Perhaps it was colder because the weather got hacked? , Steve says: “Because of the lack of humidity, temperatures would plummet over night.”. why are they i would like to know. But of course gets colder when there's no warming sunlight coming down. Your thyroid hormone levels may be low. Nevertheless, lets not get hung up about it, take out the word ‘bold’ from my comment and respond to the rest. I don't know what desert you are from but I used to live in Arizona, and it never gets cold there in the summer at night… When retrieving a boat at a ramp what … Cold deserts have hot summers but extremely cold winters. Why Is a Desert so Cold at Night? When it comes to normal places, it is the water vapour and carbon-di-oxide present in the atmosphere that keeps our nights warm. The region of scorching noontime heat becomes dead cold at night. … You used the desert situation as evidence to back up your claim of that greenhouse warming effect, I believe I countered that. You need to come up with new evidence, hopefully without the use of ‘stupid’ ‘simple’ and ‘basic’. 9 Answers. Yet THE EXACT OPPOSITE hapens during daylight hours. The main reason it is colder is because of lack of cloud cover. DESERTS ARE COLD AT NIGHT:Because of the lack of water in the ground, and little water vapor in the air, most deserts can get quite cool at night. See Answer. This fits all of those models. How does it heat up or cool down ? But it also varies with the distance to the sea. My friend and I are wondering if ALL deserts in the ENTIRE world are cold at night. On the flip side, deserts are hotter during the day time than tropical regions at the same latitude. http://www.answers.com/Q/How_bad_is_the_humidity_in_Atlanta_Georgia. p.s. The reason is due to how dry the atmosphere is. Add your answer and earn points. "Science is the belief in the ignorance of the experts" – Richard Feynman. While they are very hot during the day, the sand does not retain that heat, in the way that soil or even rocks can. Change ). 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