How can you tell the difference between summer and winter by the sun?
90362
Guess if you note the altitude of the sun at noon each day, mid summer will be the day it climbs highest in the sky, and mid winter would be when the sun is the lowest in the sky. Spring and fall are when the sun climbs to the lattitude you're at, and then you add or subtract 23.5 degrees (the tilt of the earth) to get the altitudes of the sun at summer and winter.\n\nSo if you know you're at lattitude 45 degrees, measure the altitude of the sun each day at noon, and you'll be in mid summer when the sun is at 68.5 degrees and in mid winter when the sun is at an altitude of 21.5 degrees.
1085500
It gets hot only during the summer time because the Earth is tilted towards the Sun during the summer, so the hemisphere that is facing the sun heats up. Strangely, when the Earth is farthest away from the Sun, the Northern Hemisphere is tilted towards the Sun, and it is summer there. This shows that the tilt of the Earth is more important than the distance away from the Sun when it comes to seasons. It really depends on where you live, though, because if you live on the Equator, it is hot throughout the year, and there are no seasons. In contrast, it is always cold at the poles, and there are no seasons.
866686
the equator has 2 seasons.  Spring and summer. When it is spring time here, or australia, then the sun is directly overhead at the equator, meaning summer for them.  When it is summer or winter here, that means that the sun is on either the tropic of cancer (23 1/2 degrees north) or on the tropic of capricorn (23 1/2 degrees south) meaning it is spring there.
269206
It's the angle of the earth's rotation.  The northern hemisphere tilts away from the sun during winter, causing long periods of darkness, and towards the sun in summer, causing longer daylight hours.  At the extreme nothern latitudes, this leads to constant daylight or constant darkness at those times of the year.
1138253
In the Northern hemisphere, the "Winter" solstice is on December 21. It is the "Summer solstice that occurs on June 21st. In the southern hemisphere, the opposite is true.\nThe change in the amount of daylight is very small for the first few weeks, but as we approach the next solstice the change increases up to about 9 minutes a day.
591558
depends on your latitude. You have to find a sun-path chart for your latitude.
57964
Actually, the Earth does move ever so slightly closer and farther from the sun at different times of the year. However, this is not what causes the change in temperature. The change in temperature is mainly caused by the tilt of the earth towards or away from the sun. So, for us in the Northern Hemisphere....during the winter, the northern axis of the earth is tilted slightly away from the sun. This means that the suns rays during the day are less direct on this part of the world. It's also why the sun seems to always be in your eyes during winter driving. It never rises far above the horizon.
951750
The two equinoxes (fall and spring) determine when the sun starts moving in the other direction and the two solstices (winter and summer) determine the shortest and longest days.  Your observation should continue to move in the direction as previously observed, but due to daylight savings time, the time will change...so get up earlier than 7 am to see what you want to see (sunrise for you will be at 7:14 am).
911636
Above the Arctic circle, the Sun shines all day or sets for a short period of time during the Northern hemisphere summer.\nBelow the Antarctic circle, same but during the Southern Hemisphere summer.
510653
There are three times a year where Solar time and local time are the same. January, July and then January (ok twice). Determine your position of latitude. Place a short rod in the ground, pointing north at the same angle as your latitude. (pointing to the north star) Make sure the position you pick can be seen from the South by the Sun. Mark the hours off by some smaller rods avery hour of the day. If you do this in January or July you will be closer to real or local time. The shadow of the longer rod, the gnomon, will point to the time rods you have place to mark the shadow. A sundial can also be placed on a vertical wall, with the face to the south, and the "gnomon" point down at the same angle of your latitude.
432275
Different temperature different times of the year\nhurricanes are when water temperature is warm
57358
Sunny days are the result of high pressure systems which tend to be drier and colder in the winter. There is also no cloud cover at night to keep the reradiation in and if there is snow on the ground it is even brighter and the snow is reflecting the heat back out into space.
75399
The reason there is differing amounts of daylight is that the Earth's axis is tilted with respect to the plane of its rotation about the sun. When the north pole is tilted towards the sun, the northern hemisphere days get longer. The point in the Earth's orbit about the sun where the plane through the Earth's axis that is perpendicular to the Earth's plane of orbit ALSO passes through the sun itself (i.e. the Earth's rotation axis is lined up with the sun, north end closest) is the summer solstice. When the same plane passes through the sun again, only with the south pole closest, that is the winter solstice. At summer solstice, the length of the day is longest in the northern hemisphere. At winter solstice the day is shortest in the northern hemisphere. The opposite is true in the southern hemisphere. On the equator the lengths of the days don't change at all! The further you get from the equator, the more the length of the days change with the seasons.\n\nSo let's talk northern hemisphere. If the longest day is around June 21 (summer solstice) and the shortest day is Dec 21 winter solstice, you can think of the length of the days as changing smoothly from shortest to longest as you move from winter to summer solstice. If you do the geometry to figure out how the length of days changes with the seasons, it looks a lot like a sine wave. It's actually shaped a little differently because the Earth's orbit is not a circle--that would make a sine wave exactly for the length of days--but instead an ellipse. But it's still pretty close to a sine wave. If you look at a sine wave, you'll notice that as the wave approaches the bottom, slows down its descent until it almost "flattens" at the bottom, but not quite. Then after the bottom, it goes up more steeply until somewhere in the spring it is changing as fast as possible (pretty near to the vernal equinox), then begins to slow down again until it hits the peak at the summer solstice. After the summer solstice, the longest day, the length of days begins to fall, slowly at first and then ever faster, until somewhere in fall (pretty near the autumnal equinox) it's changing as fast as it's ever going to. Then it begins to slow down, until it hits the minimum at the winter solstice again. If you look back at the description about, you'll notice that the rate at which the length of days change also varies with the season. In fact, the rate of change is like a sine wave, too, only it's shifted by a season from the wave that describes the rising and falling of the length of the day itself.\n\n\nFor the latitudes farther away from the equator, the amplitude of the sine wave is larger. For the southern hemisphere it is flipped upside down compared to the same latitude in the northern hemisphere. And on the equator, the "sine" curve as zero amplitude--that is, it's a straight line.\n\nIn calculus you would say that the rate of change of a function (the "derivative" of the function with respect to time) tells you how fast the daylight is changing on a given day. And, in calculus you also learn that the rate of change of a sine wave is a cosine wave--or just another sine wave shifted back by 90 degrees. And 90 degrees of the sine wave describing the length of days corresponds to one season on Earth!
1028154
heat in the winter shade in the summer
1062174
Summer because the sun shines out more, and there is more daylight.  Plus it's warmer.
426622
temperature differences
84038
The weather is determined by the heating and cooling of different areas of earth. If it is winter in the northern hemisphere, it is summer in the southern hemishere, basically because of amount of exposure each hemisphere gets to the sun. This will cause different weather conditions in different areas. \n\nFor example, in Hawaii, the surf is good on the South Shore, but flat on the North Shore in the summer. In the winter conditions are reversed. Hawaii being in the northern hemisphere but relatively close to the equator gets its southern summer swells from winter storms generated near New Zealand in the Southern hemisphere. During the winter, the northern swells are generated by winter storms in the North Pacific.