Editing Bulgaria (section)

=== Climate ===
[[File:Bulgaria Köppen.svg|alt=Köppen climate types of Bulgaria|left|thumb|upright=1.3|Köppen climate types of Bulgaria]]
Bulgaria has a varied and changeable climate, which results from being positioned at the meeting point of the [[Mediterranean climate|Mediterranean]], [[Oceanic climate|Oceanic]] and [[Continental climate|Continental]] air masses combined with the barrier effect of its mountains.{{Sfn|Library of Congress|2006|page=4}} Northern Bulgaria averages {{convert|1|C-change|1}} cooler, and registers {{convert|200|mm|1}} more precipitation, than the regions south of the Balkan mountains. Temperature amplitudes vary significantly in different areas. The lowest recorded temperature is {{cvt|-38.3|°C|°F|1}}, while the highest is {{cvt|45.2|°C|°F|1}}.<ref>{{cite web |url=https://unfccc.int/resource/docs/natc/bulnc2.pdf |archive-url=https://ghostarchive.org/archive/20221009/https://unfccc.int/resource/docs/natc/bulnc2.pdf |archive-date=9 October 2022 |url-status=live |title=Bulgaria Second National Communication |publisher=[[United Nations Framework Convention on Climate Change]] |access-date=9 October 2018}}</ref> [[Precipitation (meteorology)|Precipitation]] averages about {{convert|630|mm|in|1}} per year, and varies from {{convert|500|mm|1}} in [[Dobrudja]] to more than {{convert|2500|mm|1}} in the mountains. Continental air masses bring significant amounts of snowfall during winter.{{Sfn|Climate}}

Considering its relatively small area, Bulgaria has variable and complex climate. The country occupies the southernmost part of the [[continental climate|continental climatic zone]], with small areas in the south falling within the [[Mediterranean climate|Mediterranean climatic zone]].<ref>{{harvnb|Donchev|Karakashev|2004|p=52}}</ref> The continental zone is predominant, because continental air masses flow easily into the unobstructed [[Danubian Plain (Bulgaria)|Danubian Plain]]. The continental influence, stronger during the winter, produces abundant snowfall; the Mediterranean influence increases during the second half of summer and produces hot and dry weather. Bulgaria is subdivided into five climatic zones: continental zone (Danubian Plain, Pre-Balkan and the higher valleys of the Transitional geomorphological region); transitional zone (Upper Thracian Plain, most of the Struma and Mesta valleys, the lower Sub-Balkan valleys); continental-Mediterranean zone (the southernmost areas of the Struma and Mesta valleys, the eastern Rhodope Mountains, Sakar and Strandzha); Black Sea zone along the coastline with an average length of 30–40&nbsp;km inland; and alpine zone in the mountains above 1000&nbsp;m altitude (central Balkan Mountains, Rila, Pirin, Vitosha, western Rhodope Mountains, etc.).<ref>{{harvnb|Donchev|Karakashev|2004|pp=59–61}}</ref>