Where the grounds rise to form highlands east of Jordan valley, certain precipitation increases around 300 millimeters in south and 500 or more some time in north. Valley of Jordan lying in lee of high grounds on West Bank, it forms narrow climatic zone that receives up to 900 mm of rain in northern reaches, that rain dwindles about 120 mm at head of Dead Sea. Long summer of country reaches at peak during the month of august, while January it is usually coolest. There are wide ranges of temperature during twenty-four-hours. Periods are greatest during the months of summer.

For month or after and before there is dry summer season, dry air and hot season from desert, drawn by the pressure, it produces some strong winds from southeast or south that reaches sometimes gale force. It is also known in Middle East by different names such as khamsin as dry, the great dust of clouds usually accomplishes sirocco style winds.

Within few hours the temperature rise at 10 to 15 degree Celsius, these windstorms ordinarily lost day or so and cause much destroy crops and discomfort by the desiccating them. Shammal is another significant wind that comes from northwest to north, generally at the intervals between the moths of June and September.