Climate of Bastar

Bastar – plateau region comes under moist, sub – humid agro-climatic region of Chhattisgarh.

The climate is dry moist tropical type on the basis of the meteorological data 2006 to 2008, study period (Table-1,2,3 and Fig.-6-14). (a) Temperature: The diurnal changes of temperature is narrowest in the months of August 2006 and 2008, while in July 2007 there was an increases in temperature from January to April and September, October in the year 2006, January to may and September to October in 2007 and 2008. In forest area the temperature was found less due to shedding of the leaves and the forest cover. The new foliage specially of Sal (Shorea robusta) obliterating the effects of sunlight causes covering effects on the ground. The maximum temperature was recorded 36.10C, 37.70C and 39.60C in the month of May during 2006, 2007 and 2008 respectively, while minimum temperature was recorded 7.80C, 8.80C and 9.30C in the month of January for the study period 2006 to 2009 respectively. Maximum average temperature was recorded 29.90C, 31.30C and 31.90C in the month of May for the year 2006, 2007 and 2008, while minimum average was noted in the month of January 18.40C, for the year 2006 and 18.70C respectively for the year 2007 and 2008. (b) Rainfall : - Rainfall is received mainly through south west monsoon, the major portion of the rainfall was received during the month of June to September, and in rest of the other months, and rainfall received were recorded random values; however no rainfall was received during December and January. The average annual rainfall of the region was noted 116.67 mm. for the year 2006, 96.00 mm for 2007 and 101.28 mm for 2008 respectively. (c) Humidity : The average relative humidity was highest in the month of August for 2006 and 2008, while for the 2007 higher value was recorded in the month of September; the lowest value for humidity was recorded in the month of May for the year 2006 to 2008.