Abstract: In this study, data from 13 meteorological stations has been used to zoning of precipitation and temperature in Chaharmahal and Bakhtiari province where in the meantime, there are 8 climatological stations and 6 synoptic stations. After data preparation, in Excel and Notepad++ by GIS software, we produced zoning maps of temperature and precipitation. It can be stated through maps that rainfall in the North, North East and North West where are higher than other points in Chaharmahal and Bakhtiari, enjoys greater intensity. In the meantime, Koohrang station has the most rainfall among other parts of the province. More precipitation in the cold season (winter and fall) that is more severe in winter in contrast in the warm months, rainfall is the lowest. Annual precipitation charts which have been prepared from 1958-2010,represent a trend of increasing rainfall from the past to the present. On the other hand, the maps of temperature zoning show that in winter the temperature reaches below 0°C and a large part of the province experience the temperature below zero. The temperature changes in the province fluctuated from -6°C in January to 33° in July. In general, Chaharmahal and Bakhtiari located in the Western parts of the country enjoy blessing of winter precipitation in the West of the country where are due to the low-pressure air masses from the Mediterranean. In contrast, low rainfall and high temperatures in warm seasons are due to the rule of the Azores high pressure on the climate of Iran. It seems that in the province there is a positive correlation between precipitation and elevation so that at the higher places such as Koohrang, rainfall is more intense.