temperature drop - late 2014
https://en.wikipedia.org/wiki/Eid_al-Adha

" 'The first time I noticed the chemtrails was on the first day of Eid el-Adha in late 2004 when I was vacationing in Ain el-Sokhna,' says el-Husseini, 'I woke up early and, looking out at the sea, noticed the planes spraying their white chemical trails in the sky in a crisscross pattern.'

Recognizing what he was witnessing because of his prior research into the topic, he quickly set up his camera and tripod and began documenting the trail and its dispersion in 15-minutes intervals.

'These were the first photographs I took of the spraying,' notes el-Husseini, 'which is always intensive when covering a new area. The temperature dropped drastically over the course of the next six to seven hours, from 34 degrees Celsius to around 14 degrees, and relative humidity dropped from the average 65 percent to about 15 percent--which is unheard of in a location right off the coast--because of the dehydration in the atmosphere. Most people packed their things and left the beach.' "
http://globalskywatch.com/chemtrails/ubbthreads.php?ubb=showflat&Number=15498#Post15498