Websites for Weather Affect on Ancient Cultures

Egypt

http://www.reshafim.org.il/ad/egypt/geography/weather.htm

http://news.uchicago.edu/article/2014/04/01/world-s-oldest-weather-report-could-revise-bronze-age-chronology

http://www.touregypt.net/featurestories/numbers.htm

https://explorable.com/egyptian-mathematics this one is Egypt and Greek

Greece

http://www.historyforkids.org/learn/greeks/environment/greekweather.htm

http://www.ehow.com/facts_5504880_weather-like-ancient-greece.html

http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198152484.001.0001/acprof-9780198152484

Rome

http://news.discovery.com/earth/weather-extreme-events/climate-change-ancient-rome-110113.htm

http://www.people.fas.harvard.edu/~phuybers/Doc/McCormick_RomanClimate2012.pdf

http://www-groups.dcs.st-and.ac.uk/history/Education/rome.html

http://www.storyofmathematics.com/roman.html this one is Greek and Roman

http://www.medbc.com/annals/review/vol_5/num_1/text/vol5n1p5.htm maybe for the next essential question?