Fig. 1

The climate map of Iran. https://commons.wikimedia.org/w/index.php?title=File:Iran-climate.png&oldid=224111575. The samples were taken from Astara (north of Iran, border of Caspian Sea), Kermanshah province in western Iran, and Jahrom in nearly south of Iran. Astara: Coordinates: 38°25′45″N 48°52′19″E. Astara county has a humid subtropical climate with relatively cold, wet winters and hot, humid summers. This county has an average rainfall of 1292.5 mm per year, average rainy days (≥ 1.0 mm) of 112 days, and average relative humidity (%) of 82% (https://en.wikipedia.org/wiki/Astara,_Iran. Kermanshah province: Coordinates: 34°18′51″N 47°03′54″E. Kermanshah classified as Mediterranean climate, experiences rather cold winters and a hot-summer. Kermanshah has an average rainfall of 478.7 mm per year, average rainy days (≥ 1.0 mm) of 77.3 days, and average relative humidity (%) of 49% (https://en.wikipedia.org/wiki/Kermanshah). Jahrom: Coordinates: 28°30′00″N 53°33′38″E. Jahrom county has a hot semi-arid climate. The average rainfall is about 285 mm (11.2 in) per year. The average rainy days (≥ 1.0 mm) of 27 days, and average relative humidity (%) of 46% (https://en.wikipedia.org/wiki/Jahrom)