is the lightenings on the earth are equal of the surface temperature of the sun

[suntrack2]

I was doubtful to know about a broad lightening on earth in the rainy season fall along with equal to the surface temperature of sun?

or this is not true? means the temperature of any single lightning is very lower in temperature than the surface temperature of sun.

why there is no constant lightening in cloudy climate? how much wind speed require in the cloud to create the lightening.

[astromark]

Lightning has nothing to do with wind speed. Lightning is electromagnetic energy being discharged. Negative and positive ions in the turbulence of towering cumulus cloud formations will attain very high levels of energy which must discharge to earth. To balance positive and negative.
Bang, Kaboom! Lightning. As for the temperature of that arc of electricity. Oh ya, its hot. Its very hot. (Ask any workshop about arc welding tempretures...) But its so short lived the actual temperature is a little difficult to pin down. No, lightning does not do constant. Each and every lightning flash is an event in its own right.

[G O R T]

Storms act as giant Van de Graaff Generators were updrafts carry water droplets upwards, each water droplet taking extra electrons from the near earth surface to the clouds. Static voltages build up of around one billion volts per thousand feet of altitude.

Lightning bolt temperature ------ 30,000°C
Solar photosphere temperature -- 11,000°C
Sunspot temperature ------------ 4,000°C
Solar core temperature ---- ~15,000,000°C

As you can see, the Sun's surface is actually quite cool because it is radiating heat directly into space. The inside of the sun is much hotter!

[antoniseb]

Solar photosphere temperature -- 11,000°C

I think you mean 11,000°F It is normally listed at about 5800C

[George]

I think you mean 11,000°F It is normally listed at about 5800C

Some sites do seem to list it at 5800C, though it should be 5800K.

Also, for the heliochromologically minded, I would like to point out the color of lightning.

[cjl]

Well, at its temperature, the main radiation should be in the ultraviolet, but it is definitely a blinding blue-white (and I would be willing to bet that it saturates the color receptors).

It's significantly hotter than the photosphere though...

[G O R T]

I'll certainly buy 5,800 K as an average.

Temperatures vary, not all lightning will reach maximal temps either.
It is commonly quoted that lightning is five times hotter than the surface of the sun. As for the color of lightning, I imagine that due to it's short duration we only see a composite of the cooling plasma radiation as it runs down the spectrum.

[neilzero]

Lightening is electric current flow that generates lots of heat which is radiated as photons = electromagnetic radiation from radio noise to Xrays. Low frequency audio = thunder is also produced. Neil

[cjl]

Although it's not that low frequency at first - it's more of an incredibly sharp cracking noise (and more of a shock wave than a sound wave at first)