Editing Hefei (section)

==Climate==
Hefei features a [[humid subtropical climate]] ([[Köppen climate classification|Köppen]] ''Cfa'') with four distinct seasons. Hefei's annual average temperature is {{convert|16.6|°C|1}}. Its annual [[precipitation (meteorology)|precipitation]] is just slightly over {{convert|1000|mm|0}}, being heavier from May through August. Winters are damp and cold, with January lows dipping just below freezing and January averaging {{convert|2.8|°C|1}}. The city sees irregular snowfalls that rarely turn significant. Occasional cold spells from Siberia that usually happen during winter months such as December, January, February. Sometimes November and March which can bring snow and heavier snowfall. (Springs are generally relatively pleasant if somewhat erratic. Summers are hot and humid, with a July average of {{convert|28.6|°C|1}}. In the months of June, July, August, and often September, daily temperatures can reach or surpass {{convert|37|°C|0}} with high humidity levels being the norm. Autumn in Hefei sees a gradual cooling and drying. With monthly percent possible sunshine ranging from 35 percent in March to 50 percent in August, the city receives 1,868 hours of bright sunshine annually. Extremes since 1951 have ranged from {{convert|−20.6|°C|0}} on 6 January 1955, to {{convert|41.1|°C|0}} on 27 July 2017.<ref>{{cite web|url=http://cdc.cma.gov.cn/dataSetLogger.do?changeFlag%3DdataLogger |title=无标题文档 |access-date=1 January 2014 |url-status=dead |archive-url=https://web.archive.org/web/20130318113757/http://cdc.cma.gov.cn/dataSetLogger.do?changeFlag=dataLogger |archive-date=18 March 2013 }}</ref>

{{Weather box
| width = auto
| location = Hefei, elevation {{convert|50|m|ft|abbr=on}}, (1991–2020 normals, extremes 1951–present)
| metric first = Y
| single line = Y
| Jan record high C = 20.7
| Feb record high C = 27.5
| Mar record high C = 33.7
| Apr record high C = 34.7
| May record high C = 36.4
| Jun record high C = 37.8
| Jul record high C = 41.1
| Aug record high C = 41.0
| Sep record high C = 38.6
| Oct record high C = 39.9
| Nov record high C = 30.1
| Dec record high C = 24.0
| Jan high C = 7.2
| Feb high C = 10.2
| Mar high C = 15.5
| Apr high C = 21.9
| May high C = 27.1
| Jun high C = 29.7
| Jul high C = 32.6
| Aug high C = 32.1
| Sep high C = 28.2
| Oct high C = 22.9
| Nov high C = 16.4
| Dec high C = 9.9
| Jan mean C = 3.1
| Feb mean C = 5.7
| Mar mean C = 10.6
| Apr mean C = 16.8
| May mean C = 22.2
| Jun mean C = 25.6
| Jul mean C = 28.6
| Aug mean C = 27.9
| Sep mean C = 23.6
| Oct mean C = 17.9
| Nov mean C = 11.4
| Dec mean C = 5.3
| year mean C = 
| Jan low C = -0.1
| Feb low C = 2.2
| Mar low C = 6.6
| Apr low C = 12.4
| May low C = 17.8
| Jun low C = 21.9
| Jul low C = 25.4
| Aug low C = 24.7
| Sep low C = 20.1
| Oct low C = 13.9
| Nov low C = 7.4
| Dec low C = 1.7
| Jan record low C = −20.6
| Feb record low C = −14.1
| Mar record low C = −7.3
| Apr record low C = −0.4
| May record low C = 6.2
| Jun record low C = 12.2
| Jul record low C = 17.9
| Aug record low C = 15.8
| Sep record low C = 10.8
| Oct record low C = 1.5
| Nov record low C = −5.1
| Dec record low C = −13.5
| precipitation colour = green
| Jan precipitation mm = 47.4
| Feb precipitation mm = 52.8
| Mar precipitation mm = 76.3
| Apr precipitation mm = 83.7
| May precipitation mm = 90.1
| Jun precipitation mm = 158.5
| Jul precipitation mm = 185.1
| Aug precipitation mm = 138.7
| Sep precipitation mm = 70.3
| Oct precipitation mm = 51.6
| Nov precipitation mm = 54.6
| Dec precipitation mm = 33.7
| Jan humidity = 75
| Feb humidity = 74
| Mar humidity = 71
| Apr humidity = 70
| May humidity = 71
| Jun humidity = 77
| Jul humidity = 80
| Aug humidity = 81
| Sep humidity = 77
| Oct humidity = 74
| Nov humidity = 75
| Dec humidity = 73
| unit precipitation days = 0.1 mm
| Jan precipitation days = 9.0
| Feb precipitation days = 8.8
| Mar precipitation days = 10.3
| Apr precipitation days = 9.8
| May precipitation days = 10.4
| Jun precipitation days = 10.5
| Jul precipitation days = 11.8
| Aug precipitation days = 11.9
| Sep precipitation days = 8.1
| Oct precipitation days = 8.3
| Nov precipitation days = 8.2
| Dec precipitation days = 6.8
| year precipitation days = 
| Jan sun = 109.2
| Feb sun = 113.7
| Mar sun = 143.2
| Apr sun = 173.9
| May sun = 182.9
| Jun sun = 155.9
| Jul sun = 186.2
| Aug sun = 176.8
| Sep sun = 150.0
| Oct sun = 151.3
| Nov sun = 140.4
| Dec sun = 126.9
| year sun = 
| Jan percentsun = 34
| Feb percentsun = 36
| Mar percentsun = 38
| Apr percentsun = 45
| May percentsun = 43
| Jun percentsun = 37
| Jul percentsun = 43
| Aug percentsun = 43
| Sep percentsun = 41
| Oct percentsun = 43
| Nov percentsun = 45
| Dec percentsun = 41
| year percentsun = 
| Jan snow days = 4.3
| Feb snow days = 2.6
| Mar snow days = 1.1
| Apr snow days = 0
| May snow days = 0
| Jun snow days = 0
| Jul snow days = 0
| Aug snow days = 0
| Sep snow days = 0
| Oct snow days = 0
| Nov snow days = 0.5
| Dec snow days = 1.5
| year snow days = 
| source 1 = China Meteorological Administration<ref name="cma graphical">{{cite web|url=http://data.cma.cn/data/weatherBk.html |script-title=zh:中国气象数据网 – WeatherBk Data |publisher=[[China Meteorological Administration]] |language = zh-cn |access-date=15 April 2020}}</ref><ref name="CMA old">
{{cite web|url=http://old-cdc.cma.gov.cn/shuju/search1.jsp?dsid=SURF_CLI_CHN_MUL_MMON_19712000_CES&tpcat=SURF&type=table&pageid=3 |script-title=zh:中国地面国际交换站气候标准值月值数据集（1971－2000年）|publisher=[[China Meteorological Administration]] |access-date=25 May 2010 |url-status=dead |archive-url=https://web.archive.org/web/20130921055035/http://old-cdc.cma.gov.cn/shuju/search1.jsp?dsid=SURF_CLI_CHN_MUL_MMON_19712000_CES&tpcat=SURF&type=table&pageid=3 |archive-date=21 September 2013 }}</ref><ref>{{cite web
|url=https://experience.arcgis.com/template/e724038fda394e9d9b7921f10fd1aa55/page/%E7%BA%AF%E8%A1%A8%E6%A0%BC%E7%BB%9F%E8%AE%A1-(%E5%AF%B9%E6%AF%948110%E5%8F%98%E5%8C%96)/?org=UQmaps
|script-title = zh:CMA台站气候标准值(1991-2020)
|publisher =  [[China Meteorological Administration]]
 | language = zh | access-date = 12 September 2023
|title = Experience Template
}}</ref>
| source = 
}}

===Air pollution===
{{See also|2013 Eastern China smog}}
Air quality typically diminishes in May and June when the city is blanketed by smog caused by the smoke generated as farmers outside the city burn their fields in preparation for planting the next crop.