The area of "Lar, Markazi" limestone is a relatively mountainous region located on the northern slopes of "Dargholi" mountains and has a cold and dry mountainous climate with mild and moderate summers and very cold winters.The amount of precipitation in this area is relatively high due to its mountainous nature. How the wind blows is closely related to the geographical location and the general appearance of the hills and valleys.The north and northwest air flow that starts from October and continues until the middle of spring causes rain and cold air prevails in the region, and the hot and dry air flow that starts from the middle of spring and continues until the end of summer. The presence of large and small valleys, permanent rivers, the flow of the breeze from mountain to valley, valley to mountain can be felt well during the days and nights.The general current of the wind in the region is the west wind. Three important factors of altitude, seasonal lakes and west rain-bringing winds play a major role in determining the climate of the studied area. In the cold seasons, this area is affected by the northern, northwestern and southern systems, this has caused its weather to be cold and dry in winter and in summer due to the advance of hot and dry weather with dust in the air. The existence of these two weather currents has caused the weather to change in all seasons.