The year is popularly divided into three seasons: summer, the rains, and winter. Summer extends over the months of Chaitra to Jyestha (mid-March to mid-May). The average maximum temperature during the summer months is 37 °C, which typically rises to around 40 °C on a few days. The rainy season starts with the first showers of Aashaadha (mid-June) and extends to the middle of Ashvin (September). Most of the rain falls during the southwest monsoon spell, and ranges from about 80 cm in the west to about 10.5 cm in the east. Indore and the immediately surrounding areas receive an average of 90 cm of rainfall a year. The growing period lasts from 90 to 150 days, during which the average daily temperature is below 30 °C, but seldom falls below 20 °C. Winter is the longest of the three seasons, extending for about five months (mid-Ashvin to Phalgun, i.e., October to mid-March). The average daily minimum temperature ranges from 6 °C to 9 °C, though on some nights it can fall as low as 3 °C. Some cultivators believe that an occasional winter shower during the months of Pausha and Maagha—known as Mawta—is helpful to the early summer wheat and germ crops.