Wheat and cotton are the chief crops, although production fluctuates wildly according to rainfall and soil erosion is a major problem occurring both after droughts and floods. The climate is hot in summer, mild in winter, and of moderate rainfall. The average is generally around with a slight summer maximum, but is quite erratic and can vary from in very wet years to as little as . Temperatures in summer frequently exceed and make cropping without irrigation risky without sophisticated meteorological forecasting techniques.