Knowledge of the distribution of dry spell during the monsoon period is very much essential for successful management of dry land agriculture. This information is very much essential for planning and management of crop and cropping pattern. Knowledge of onset and withdrawal of effective monsoon as well as, occurrence of critical dry spells and its duration helps in deciding sowing dates and in planning and management of different dry land crop for achieving optimum yields. Average seasonal rainfall during kharif season in different talukas of Buldhana district ranges from 650 to 837.4 mm. The average crop yield data for various crops in different taluka places during the study period was critically analyzed to decide the minimum duration of critical dry spell in Buldhana district. From results Average seasonal rainfall during kharif season in different talukas of Buldhana district ranges from 650 to 837.5 mm. Effective monsoon (OEM) normally starts from 20th June to 3th July (25-27 MW) in Buldhana district. It may start earliest by 4th June to 18th June and latest by 30rd June to 31th July. On an average, there are 2 to 3 CDS (s) occur in Buldhana district. First CDS of 13 to 18 days duration occurs immediately after OEM during 12-30 June (24-26 MW), whereas the second CDS of 13 to 24 days occurs during 20th July to 4th August (29-31 MW). Third CDS of duration 17 to 23 days occurs during 16th August to 10th September (33-37 MW). Period and time of occurrence of number of critical dry spells affect the yield of mung and soybean crop to the considerable extent, followed by Sorghum crop. The duration of critical dry spell was found to be 16 for sorghum crop and 12 days for soybean and green gram crop. In-situ rainwater conservation practices and harvesting of excess rainwater needs to be adopted to overcome the impact of dry spell situation to some extent in the Buldhana district.