从沉淀温度变化的主要因素…<人力资源> * * * *,从根本上下降到地面的雨量在更高的天空中。降水通常来自寒冷的地方我们在地上(对流层通常与高度冷却器,平均约6.5摄氏度\公里。)。基本上,雨本身通常比空气事先至少感觉冷,对吧? ?好吧,如果你带来一些寒冷的温暖的环境中,他们的温度会朝着两者之间的平衡。[+ +看到(热力学第二定律)[1]+ +]明显降雨,有很多冷水被传播到我们的温暖的空气,而且由于雨水的分散性质(一堆小滴而不是一个巨大的流)确保下雨非常快速而有效地传播它的低温到空气中。<人力资源> * * * *,降雨也鼓励向下的空气流动,由于摩擦。[+ +看到[下降气流][2]+ +)不仅是雨(几乎总是冷)下降了,但空气(几乎总是冷)也下降。此外,雨是冷却空气通过下降,寒冷的空气下沉,所以气流进一步增强。[+ +实际空气必须相当冷沉的…… see [adiabatic warming][3] ++] So this is a second fairly quick cooling process, as downdrafts occur within the lifecycle of a thunderstorm cell/complex. 
 And **third**, some of the rain/snow/sleet/hail/etc water will begin to evaporate (or [sublimate][4]!) as it is falling and once it reaches the ground, unless the air is totally saturated. When water evaporates, it needs to gain energy. To do so, it takes energy from the environment, namely the air. This evaporative cooling just exacerbates the first two influences above. And can furthermore continue to have impacts days after the rainfall 
 [There are also other factors important in the longer term, such as snow reflects sunlight (cooling the area), moister air favors cloud formation (which cool during the day, warm at night), and moister air changes temperature at a slower rate due to its [heat capacity][5] (cooling during the day, warming at night).] 
 But, the result is, **scientifically, when precipitation falls, it is fundamentally a cooling process**. The stronger the precipitation is, the much more significant the cooling. And certain atmospheric setups enhance the cooling effect even more (steep [lapse rates][6], dry air nearer the ground) Now, even after saying all that, it actually **can still be warmer soon after rainfall**. How in the world is that possible!?! **Because wind can still blow in large amounts of air from other areas... sometimes from environments that haven't yet themselves experienced significant precipitation.** This often happens as [warm fronts][7] pass. Other unbalanced factors can overwhelm the cooling effect as well... like when the sun comes out a brief shower in one spot, where a neighboring rainless location remains cloudy. The hot sun could quickly turn the battle back towards warmer at the location that had rain. [++ There is indeed at least one other very very rare way, if the atmosphere is setup perfectly such a strong downdraft begins to warm due to adiabatic compression, but still has enough oomph to reach the ground... you get a [heat burst][8]. ++] So air after rainfall is cooled in the extreme majority of cases... it's just that your cooled air may instead end up being relocated to other locations. Check out the topic of [outflow boundaries][9]. So, to your questions: - Will it be colder right after a storm compared to how it was right before the storm? **Most likely** - Will it be colder the day after a storm compared to how it was right before the storm? **Depends what the weather pattern and air mass movement is like. If a cold front moves in, yes. If a warm front moves in, no. In the tropics or during the height of summer, it will often be about the same the next day as the atmosphere mixes the cool air yesterday's rain about until it's insignificant and the air heats back up again the next day.** - Will it be colder after a storm than it otherwise would have been without the storm? **Basically yes. A nearby site that doesn't get the storm's effects will almost certainly be warmer.** [1]: https://www.grc.nasa.gov/www/k-12/airplane/thermo2.html [2]: http://www.boldmethod.com/learn-to-fly/weather/microbursts-and-how-they-affect-your-plane/ [3]: http://www.kidsgeo.com/geography-for-kids/0070-adiabatic-temperature-changes.php [4]: https://en.wikipedia.org/wiki/Sublimation_(phase_transition) [5]: https://www.e-education.psu.edu/earth103/node/1005 [6]: https://en.wikipedia.org/wiki/Lapse_rate [7]: https://www.youtube.com/watch?v=tsD6zkBMmck [8]: http://www.weatherimagery.com/blog/what-is-a-heat-burst/ [9]: https://www.e-education.psu.edu/meteo361/l6_p6.html