The area receives nearly of precipitation during a typical year, with the largest share being received in May and June—the April through June period averages 33 days of measurable precipitation. Generally, the spring and summer have the most rainfall, with autumn and winter being fairly dry. During a typical year, the total amount of precipitation may vary from . Much of the rainfall is delivered by thunderstorms. These can be severe, producing frequent lightning, large hail, and sometimes tornadoes. An average of 100 days of measurable precipitation occur per year. Winter snowfall is light, as is the case in most of the state, as a result of the dry, sunny weather patterns that dominate Kansas winters, which do not allow for sufficient moisture for significant snowfall. Winter snowfall averages . Measurable (≥) snowfall occurs an average of 12.9 days per year, with at least of snow being received on five of those days. Snow depth of at least an inch occurs an average of 20 days per year.