section_path: Geography/Climate
section_name: Climate
paragraph_text: Climate
  
  Tbilisi has a humid temperate climate (Köppen: Cfa, Trewartha: Do) with considerable continental and semi-arid influences. The city experiences hot, humid summers and moderately cold dry winters. Like other regions of Georgia, Tbilisi receives significant rainfall throughout the year with no distinct dry period. The city's climate is influenced both by dry (Central Asian/Siberian) air masses from the east and oceanic (Atlantic/Black Sea) air masses from the west. Because the city is bounded on most sides by mountain ranges, the close proximity to large bodies of water (Black and Caspian Seas) and the fact that the Greater Caucasus Mountains Range (further to the north) blocks the intrusion of cold air masses from Russia, Tbilisi has a relatively mild microclimate compared to other cities that possess a similar climate along the same latitudes.
  
  The average annual temperature in Tbilisi is 13.8 °C (56.8 °F). January is the coldest month with an average temperature of 2.7 °C (36.9 °F). July is the hottest month with an average temperature of 25.4 °C (77.7 °F). Daytime high temperatures reach or exceed 32 °C (90 °F) on an average of 22 days during a typical year. The absolute minimum recorded temperature is −24.4 °C (−11.9 °F) in January 1883 and the absolute maximum is 42.0 °C (107.6 °F) on 17 July 1882. Average annual precipitation is 511.5 mm (20.1 in). May is the wettest month (averaging 84.0 mm (3.3 in) of precipitation) while January is the driest (averaging 16.4 mm (0.6 in) of precipitation). Snow falls on average 15–25 days per year. The surrounding mountains often trap the clouds within and around the city, mainly during the Spring and Autumn months, resulting in prolonged rainy and/or cloudy weather. Northwesterly winds dominate in most parts of Tbilisi throughout the year. Southeasterly winds are common as well.