Israel enjoys long, warm, dry summers (April-October) and generally mild winters (November-March) with somewhat drier, cooler weather in hilly regions, such as Jerusalem and Safed. Rainfall is relatively heavy in the north and center of the country, with much less in the northern Negev and almost negligible

Regional conditions vary considerably, with humid summers and mild winters on the coast; dry summers and moderately cold winters in the hill regions; hot dry summers and pleasant winters in the Jordan Valley; and year-round semi-desert conditions in the Negev.

 amounts in the southern areas. 

Weather extremes range from occasional winter snowfall in the mountain regions to periodic oppressively hot dry winds that send temperatures soaring, particularly in spring and autumn.

For a table of average annual temperatures click here. 

For more specific information, contact the Israel Meteorological
Service: http://www.ims.gov.il/IMSENG/ALL_TAHAZIT/HOMEPAGE.HTM