Moldova's climate is mild in the winter and warm in the summery. Winter temperatures are typically in the 20s (F) but occasionally fall below zero. Highs in the summer are typically in the 80s but can go as high as 100. There are four distinct seasons, with foliage on trees between April and October. The climate is semiâ€‘arid. Because of the clearing of land for agricultural cultivation--especially in the Soviet era for grape production--there are few forests or woodlands. There has been soil erosion due to farming methods. The effect in the cities is that occasionally dust can blow up from the streets in gusts. Humidity in the summer can be high.