Editing Cluj-Napoca (section)

===Climate===
Cluj-Napoca has a [[humid continental climate|warm-summer humid continental climate]] ([[Köppen climate classification|Köppen]]: ''Dfb''). The climate is influenced by the city's proximity to the [[Apuseni Mountains]], as well as by urbanisation. Some West-Atlantic influences are present during winter and autumn. Winter temperatures are often below {{convert|0|C|F|0}}, even though they rarely drop below {{convert|-10|C|F|0}}. On average, snow covers the ground for 65 days each winter.<ref>{{Cite web |title=Mediu: Cluj-Napoca |url=http://www.primariaclujnapoca.ro/proiecte-dezbateri/Politici_comunitare_de_mediu.pdf |archive-url=https://web.archive.org/web/20070125155551/http://www.primariaclujnapoca.ro/proiecte-dezbateri/Politici_comunitare_de_mediu.pdf |archive-date=25 January 2007 |access-date=2008-03-21 |publisher=Primăria Cluj-Napoca |language=ro}}</ref> In summer, the average temperature is approximately {{convert|20|C|F|0}}, despite the fact that temperatures sometimes reach {{convert|35|C|F|0}} in mid-summer in the city centre. There are infrequent yet heavy and often violent storms in summer. During spring and autumn, temperatures vary between {{convert|0|C|F|0}} to {{convert|22|C|F|0}}, with more frequent yet milder periods of rain.

The city has the best air quality in the European Union,<ref>{{Cite web |date=7 June 2014 |title=Cluj-Napoca tops the list of cities with best air quality in Europe |url=http://business-review.eu/featured/cluj-napoca-tops-the-list-of-cities-with-best-air-quality-in-europe/ |url-status=dead |archive-url=https://archive.today/20140608124156/http://business-review.eu/featured/cluj-napoca-tops-the-list-of-cities-with-best-air-quality-in-europe/ |archive-date=8 June 2014 |website=Business-Review}}</ref> according to research published in 2014 by a French magazine and air-quality organisation that studied the EU's hundred largest cities.<ref>{{Cite news |date=5 June 2014 |title=Dans quelle ville européenne respire-t-on le mieux? |url=http://www.lemonde.fr/planete/article/2014/06/05/dans-quelle-ville-en-europe-respire-t-on-le-mieux_4433073_3244.html |url-status=live |archive-url=https://web.archive.org/web/20140608155802/http://www.lemonde.fr/planete/article/2014/06/05/dans-quelle-ville-en-europe-respire-t-on-le-mieux_4433073_3244.html |archive-date=8 June 2014 |access-date=8 June 2014 |work=[[Le Monde]] |language=fr}}</ref>

{{Weather box
|location = Cluj-Napoca, 1991–2020 normals, extremes 1901–present
|metric first = yes
|single line = yes
|Jan record high C = 14.1
|Feb record high C = 19.6
|Mar record high C = 26.7
|Apr record high C = 30.2
|May record high C = 32.5
|Jun record high C = 36.0
|Jul record high C = 38.0
|Aug record high C = 38.5
|Sep record high C = 34.4
|Oct record high C = 32.6
|Nov record high C = 26.0
|Dec record high C = 18.7
|year record high C = 38.5
 | Jan high C = 0.9
 | Feb high C = 4.1
 | Mar high C = 10.2
 | Apr high C = 16.6
 | May high C = 21.4
 | Jun high C = 24.9
 | Jul high C = 26.7
 | Aug high C = 27.0
 | Sep high C = 21.5
 | Oct high C = 15.6
 | Nov high C = 8.4
 | Dec high C = 1.9
 | year high C = 14.9

 | Jan mean C = -2.5
 | Feb mean C = -0.4
 | Mar mean C = 4.3
 | Apr mean C = 10.1
 | May mean C = 14.9
 | Jun mean C = 18.5
 | Jul mean C = 20.1
 | Aug mean C = 19.8
 | Sep mean C = 14.7
 | Oct mean C = 9.4
 | Nov mean C = 3.9
 | Dec mean C = -1.1
 | year mean C = 9.3

 | Jan low C = -5.2
 | Feb low C = -3.8
 | Mar low C = -0.1
 | Apr low C = 4.7
 | May low C = 9.1
 | Jun low C = 12.7
 | Jul low C = 14.2
 | Aug low C = 13.9
 | Sep low C = 9.6
 | Oct low C = 4.9
 | Nov low C = 0.6
 | Dec low C = -3.6
 | year low C = 4.8

|Jan record low C = -34.2
|Feb record low C = -32.5
|Mar record low C = -22.0
|Apr record low C = -8.4
|May record low C = -3.5
|Jun record low C = 0.4
|Jul record low C = 5.2
|Aug record low C = 0.5
|Sep record low C = -8.8
|Oct record low C = -16.8
|Nov record low C = -22.3
|Dec record low C = -27.9
|year record low C = -34.2
 | precipitation colour = green
 | Jan precipitation mm = 27.3
 | Feb precipitation mm = 24.8
 | Mar precipitation mm = 34.6
 | Apr precipitation mm = 51.0
 | May precipitation mm = 71.2
 | Jun precipitation mm = 91.0
 | Jul precipitation mm = 87.2
 | Aug precipitation mm = 64.7
 | Sep precipitation mm = 55.5
 | Oct precipitation mm = 45.3
 | Nov precipitation mm = 33.8
 | Dec precipitation mm = 34.0
 | year precipitation mm = 620.4

 | unit precipitation days = 1.0 mm
 | Jan precipitation days = 6.7
 | Feb precipitation days = 6.8
 | Mar precipitation days = 7.0
 | Apr precipitation days = 8.5
 | May precipitation days = 10.1
 | Jun precipitation days = 10.6
 | Jul precipitation days = 10.0
 | Aug precipitation days = 7.1
 | Sep precipitation days = 7.6
 | Oct precipitation days = 7.0
 | Nov precipitation days = 6.5
 | Dec precipitation days = 6.9
 | year precipitation days = 94.8

|Jan snow cm = 6.0
|Feb snow cm = 11.5
|Mar snow cm = 5.8
|Apr snow cm = 1.3
|May snow cm = 0.0
|Jun snow cm = 0.0
|Jul snow cm = 0.0
|Aug snow cm = 0.0
|Sep snow cm = 0.0
|Oct snow cm = 0.5
|Nov snow cm = 2.6
|Dec snow cm = 5.8
|year snow cm = 33.5
| Jan snow days  =13.6
| Feb snow days  =10.3
| Mar snow days  =5.5
| Apr snow days  =1.4
| May snow days  =0
| Jun snow days  =0
| Jul snow days  =0
| Aug snow days  =0
| Sep snow days  =0.2
| Oct snow days  =0.2
| Nov snow days  =4.5
| Dec snow days  =11
| year snow days =

|Jan humidity = 87
|Feb humidity = 82
|Mar humidity = 74
|Apr humidity = 72
|May humidity = 74
|Jun humidity = 77
|Jul humidity = 76
|Aug humidity = 76
|Sep humidity = 78
|Oct humidity = 81
|Nov humidity = 86
|Dec humidity = 88
|year humidity = 79
| Jan dew point C =-4.3
| Feb dew point C =-4.7
| Mar dew point C =-0.3
| Apr dew point C =3.8
| May dew point C =9.1
| Jun dew point C =11.9
| Jul dew point C =12.8
| Aug dew point C =12.9
| Sep dew point C =10.2
| Oct dew point C =5.5
| Nov dew point C =0.6
| Dec dew point C =2.9

 | Jan sun = 70.2
 | Feb sun = 100.9
 | Mar sun = 159.2
 | Apr sun = 188.7
 | May sun = 230.1
 | Jun sun = 253.1
 | Jul sun = 265.7
 | Aug sun = 260.7
 | Sep sun = 190.2
 | Oct sun = 153.5
 | Nov sun = 89.4
 | Dec sun = 54.6
 | year sun = 2016.3
 | Jan light = 9 
 | Feb light = 10.3
 | Mar light = 11.9
 | Apr light = 13.6
 | May light = 15.1
 | Jun light = 15.8
 | Jul light = 15.4
 | Aug light = 14.2
 | Sep light = 12.5
 | Oct light = 10.9
 | Nov light = 9.4
 | Dec light = 8.6
 | year light= 
| Jan uv  =1
| Feb uv  =2
| Mar uv  =3
| Apr uv  =5
| May uv  =7
| Jun uv  =8
| Jul uv  =8
| Aug uv  =7
| Sep uv  =5
| Oct uv  =3
| Nov uv  =1
| Dec uv  =1
| year uv =
|source 1 = [[National Oceanic and Atmospheric Administration|NOAA]] (snow and Dew Point 1961–1990)<ref>{{Cite web |title=World Meteorological Organization Climate Normals for 1991-2020 — Cluj-Napoca |url=https://www.nodc.noaa.gov/archive/arc0216/0253808/2.2/data/0-data/Region-6-WMO-Normals-9120/Romania/CSV/ClujNapoca_15120.csv |access-date=January 11, 2024 |publisher=National Oceanic and Atmospheric Administration}}</ref><ref>{{Cite FTP |title=Cluj Climate Normals 1961–1990 |url=ftp://ftp.atdd.noaa.gov/pub/GCOS/WMO-Normals/RA-VI/RO/15120.TXT |server=[[National Oceanic and Atmospheric Administration]] |access-date=21 March 2015 }}</ref> Romanian National Statistic Institute,<ref>{{Cite web |year=2007 |title=Air Temperature (monthly and yearly absolute maximum and absolute minimum) |url=http://www.insse.ro/cms/files/pdf/ro/cap1.pdf |url-status=dead |archive-url=https://web.archive.org/web/20070927210503/http://www.insse.ro/cms/files/pdf/ro/cap1.pdf |archive-date=27 September 2007 |access-date=27 November 2012 |website=[[Romanian Statistical Yearbook]]: Geography, Meteorology, and Environment |publisher=Romanian National Statistic Institute}}</ref>
|source 2 =  [[Deutscher Wetterdienst]] (humidity, 1973–1993),<ref>{{Cite web |title=Klimatafel von Klausenburg (Cluj-Napoca), Siebenbürgen / Rumänien |url=http://www.dwd.de/DWD/klima/beratung/ak/ak_151200_kt.pdf |url-status=live |archive-url=https://web.archive.org/web/20190329153503/https://www.dwd.de/DWD/klima/beratung/ak/ak_151200_kt.pdf |archive-date=2019-03-29 |access-date=23 November 2016 |website=Baseline climate means (1961–1990) from stations all over the world |publisher=Deutscher Wetterdienst |language=de}}</ref> Weather Atlas (Daylight-UV),<ref>{{Cite web |title=Yearly & Monthly Weather - Cluj-Napoca, Romania |url=https://www.weather-atlas.com/en/romania/cluj-napoca-climate |access-date=12 February 2024 |website=weather atlas |publisher=Weather Atlas}}</ref> Meteomanz (snow days 2000-2023, extremes since 2021)<ref>{{Cite web |title=Cluj-Napoca - Weather data by months |url=http://www.meteomanz.com/sy3?l=1&cou=6240&ind=15120&m1=01&y1=2000&m2=07&y2=2024 |access-date=6 July 2024 |website=meteomanz}}</ref>
|date = August 2010
}}