A fairly large part of Western Ukraine is occupied by the Ukrainian Carpathians, which are located in the mountain climate zone. It is characterized by vertical zonation, that is, the change in landscapes and temperature depends on the altitude of the area above sea level. In this area, the annual precipitation ranges from 745 to 1450 mm, on the highest ridges up to 2000 mm. The average annual temperature is +4.5 degrees. In the western regions located outside the mountain zone, humidity and temperature correspond to the indicators of the northern climatic regions of the country. The average precipitation is about 480-690 mm per year, the average temperature in summer ranges from 15.5 to 20.5 degrees, and in winter from -6.5 to -8 degrees.
In mountainous areas, a large amount of snow falls: a stable snow cover usually lies from mid-October to mid-May. The depth of snow increases with altitude: in the highland regions of Zakarpattia and Ivano-Frankivsk oblasts, it reaches 30-40 cm or more. In Western Ukraine, westerly and southeasterly winds prevail. The former are usually accompanied by rain, bringing warming in winter and cooling in summer. Southeasterly winds, on the contrary, bring dry weather, frosts in winter and warming in summer.
Sharp pressure changes are observed in all seasons, and in summer, when atmospheric fronts pass, temperature fluctuations and thunderstorm showers are frequent. In the cold season, fogs are common.
Weather in Lviv is cooler and wetter than in the eastern regions of Ukraine. The average temperature in June is +17 degrees, usually the thermometer in summer rises to +20-25 degrees, and rarely reaches +30. The average temperature in winter is -3.4 degrees. The annual precipitation ranges from 500 to 800 mm, in some years it can exceed 1000-1200 mm.
For Lviv, a phenomenon such as drizzle is typical, which can be observed at any time of the year and is a steady light rain. Overall, the climate of Lviv is similar to conditions in other parts of Western Ukraine that are not in high-altitude areas.
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